3 Things I Learned From Owning a Swimming Pool

3 Things I Learned From Owning a Pool

After working in the pool business for years, my family and I finally decided to take the plunge and build our own pool. This was our first venture as pool owners. Now that I have had a pool for three years and after getting help from eXp Realty, I have learned several lessons that I did not know prior to owning a pool. You could say I went from book smarts to street smarts as a pool owner. The three biggest things I have learned from pool ownership are:

  1. A lot of Evaporation occurs
  2. You add a lot of Salt
  3. You add a lot of Acid

A lot of EvaporationSwimming Pool Evaporation

I was blown away by how much water is lost due to evaporation. Normally pools see ¼ – ½ inch loss of water per day due to evaporation. This is roughly 2 – 4 inches per week. For a normal sized pool you will loose 25,000 to 50,000 gallons of water per year due to evaporation. This means I was putting a hose in the pool every 7-10 days to fill the pool. On several occasions I went out to the pool and I was sure I had a leak. I ended up doing the bucket test. This is a test where you place a bucket on your deck and fill it with water. You then mark the water level in your skimmer. After a few days you check to see if the level drop in the bucket is the same for the pool. If it is the same then it is due to evaporation and not a leak. The bucket test confirmed my water loss was due to evaporation.

After a few times of forgetting to turn off the hose and flooding the pool deck, running the skimmers dry and just the hassle of pulling out the hose I decided to invest in an Automatic Pool Leveler. This is my favorite equipment that I have purchased for the pool. Common factors which cause increased evaporation are hot temperatures, pool heating and strong winds. One last item which can cause water loss is excessive filter backwashing.

You add a lot of SaltBlog Image - Pool Salt

I have been really happy with my Pool Salt System, in fact, it is one of the favorite pieces of equipment I have on my pool. A Pool Salt System Works by Adding Salt to Your Pool and then the saltwater passes through an electrode where chlorine is produced and it is sent back to your pool. Since salt does not dissolve out of water you only need to add salt when you experience heavy rain, water is splashed out of the pool or you have water loss due to evaporation. My estimate was that I would add a “few bags” of salt at the beginning of the year and then add a few bags throughout the year.

Since evaporation in Florida occurs often because of our excessive heat this means I have added quite a bit more salt than I originally assumed. I have a pretty large pool (coming in at just under 40,000 gallons) and I would estimate I have added 30 bags of salt in the span of a year. This is quite a bit more than my original estimate of “a few bags”. Even with this larger amount of salt needed to maintain a pool I would still highly recommend a salt system. Just know that the cost savings over traditional chlorine may be a little less since you have the cost of adding salt to the pool throughout the year.

You add a lot of AcidPool Acid

When you have a salt system, your pool water’s pH levels will tend to increase. High pH levels lead to scaling on the pool tiles, pool equipment and pool walls. To combat this increase of pH you add muriatic acid to the pool to decrease your pH levels. To maintain the proper pH levels in my pool I need to add roughly one gallon of acid per week which is much higher than I anticipated. Normally I will test my pool water every Sunday and without fail my pH level is high. I then add acid to bring the pH level down to the ideal range of 7.2.

I did add an automatic acid dispenser to the pool to automate the process of adding acid to the pool, but it has not been without problems. The idea is good, but there are a few kinks that need to be worked out. The main issue I had is that the probe which measures the acid did not read accurately so the dispenser would not switch on to dispense acid. After many failed attempts to fix the acid dispenser, I have gone back to adding acid the old-fashioned way – by hand.

I truly believe the best way to learn the ins and outs of a product is by owning it and a pool has been no exception. I hope the lessons I have learned from owning a pool can help you in some way. If you have any lessons that you have learned from owning your pool we would love to hear from you, so feel free to post them to the comments section below.

81 thoughts on “3 Things I Learned From Owning a Pool

  1. Question for anyone to reply, please!
    I have a 33 thousand gallon in ground pool, quite large, and just added a large spa for 10 to 12 people sitting comfortably on a bench or standing on the floor with water level to mid chest line. It is attached to the pool with over flowing cascade, daily on when the pool pump is running to clean the water of both features. When I had the spa added, I also had the pool redone adding new other steps, and other features, including a new resurface of granite composition that cost me a lot money. It has 20 years of warranty, that is if the pool contractor does not go out of business or dies. My question is, how much water should the pool and spa be loosing? I’m in Southern California, and it get hot during the summer, but these last 2 weeks of rain, cold and some windy days, the pool water dropped about 6 to 9 inches. I was surprised thinking that there would be less evaporation during cold, cloudy and rainy days. Sorry for my long explanation but wanted to be thorough by mentioning that every thing was new but the hole in the ground. Oh! All the filtration equipment and water heater brand new and efficient, and no evidence of leaks, not even the backwash pipe. Now, should I be worried and call the contractor to come a troubleshoot for leaks? It’s been three years ago when the construction took place.
    I also wanted to comment on about the salt system pools. I did do my investigation researching and talked to a lot of pool and spa builders when I was getting estimates of the remodeling of the pool and adding the spa. I concluded that the salt system is not too damaging for the skin, hair, eyes and even the swim suits. It also maybe saves money with the chemicals. But on the other hand, I learned that salt corrodes more and faster, the piping specially old pools made with metal pipes, the filtration system even the new ones, the pumps, valves, seals etc., but more so the finish of the pool wether is plain plaster which is what most people have done. Also the grout holding the tiles in place and is very damaging to the pebble finishes regardless of colors.
    I’m new to this site and find it very informative and friendly. Thanks to everyone and happy holidays.

    1. You need to test your chemicals. Certain readings will tell you if you have a leak. If your cya is constantly dropping then you may have a leak. Also look at tds levels. Check levels every three weeks and see what happens.

  2. Is “Stabilizer” cost effective? Is the money you spend on it less than the cost of the chlorine that would have evaporated without it?

    1. Yes, the cost of stabilizer is far less than the amount of chlorine you would need to compensate. Stabilizer once diluted into water, can not be taken out of solution unless that water is drained. On the other hand, chlorine gets used by organic material or burned off by sunlight constantly.

      I’ve had a rash of these questions recently about trying to ditch stabilizer, not sure where this is coming from. If you have any type of chlorine sanitized pool, then you will need a stabilizing agent.

      1. Cyanuric acid (stabilizer) loosely bonds with chlorine. The result is that there is a reduction of free chlorine in the pool available to react. Free chlorine is what reduces organic contaminants. Therefore, if you are able to produce adequate free chlorine during hot weather the need for stabilizer is limited. Reality is that during the summer months it is often very hard to maintain sufficient free chlorine.

        That is the reasoning that cause people to argue against stabilizer. Pool chemistry is a dark and magical art. Virtually no pool is the same. Often it takes years to get the optimal chemical balance that is best for your conditions and pool construction.

  3. I am coming in late so I hope I am not repeating another comment. The hardest leak to find that I ever had in 25 years of pooling was a leak in the electrical conduit going to the wet nook light. It was slow but noticeable. I stopped up the conduit at the light. This worked for awhile, but, ultimately, I removed and covered up the light. FYI the leak was found using food coloring, which was attracted to the leak. Expensive high tech leak detection equipment did not find it

  4. When kids used to get in my pool every summer, I had to constantly put shock in it. Now that I’m the only one using my pool, I haven’t had to add ANYTHING, shock or otherwise since opening the pool in May. It’s now July 9 and the water is still clear. Yes I’ve had plenty of evaporation but that’s it. I just add water from the hose. I don’t use any salt or chemicals and the water stays CLEAR and CLEAN. The only reason I can think of why this is happening is because I never “pee” in the pool.

  5. Hi. Thanks for all the good advice here. We are having the same problem with our pool – losing 1/4″ a day, having to fill it back up every week or two, and having to put in lots of salt. I also did the “bucket test” and it showed that the water level in my pool was dropping at a faster rate than in the bucket. I had a question about that though – the water in the bucket is not moving; we have a waterfall which keeps the water in the pool constantly agitated for at least 8 hours a day. Wouldn’t that lead to faster evaporation? Thanks.

  6. Hello!
    We had a bad leak in our old pool liner, and just got the new one in mere days ago. But I am still seeing the water go down in the pool. Yesterday it was about an inch loss, I refilled it, and this morning it was down about a 1/2 inch already. I am wondering if evaporation could account for this. I will do the bucket test tonight but it seems so odd that with a brand new liner we would still be seeing an inch a day loss.

  7. So how much does it cost to keep adding water to the pool? Or better, how much does a pool cost per year for al the water, maintenance, electricity, etc? I’d like to know the annual cost before I decide to have a pool installed in my back yard.


  8. We have an inground saltwater pool. The first year we moved in, there were three leaks detected- 1. One liner tear 2. Pipe disconnection near pump and 3. We have an in ground pool cleaning system and there was a leak detected in one of the sections (we bypass that cleaning section to avoid the leak). My concern is, we do have to add salt multiple times a year and add water daily. We don’t usually lose more then 1/4-1/2 inch a day. Should I be overly cautious and worry about a missed leak?? We live in Knoxville TN and do have pretty humid summers.

    1. You can lose a quarter of an inch of water to evaporation every day in the summer months. That is normal. Not sure what the temperatures are like for you right now, but you should not lose that much water; especially if it humid. All the leaks need to be found and fixed, that is the main thing.

      Why would you be worried about being overly cautious?

      1. So is it a problem that we’ve just by passed one of the leaks and didn’t fix it?

        We just opened the pool today, so far looks like the water has remained level. I just worry that we don’t lose over the “ok’d” about but still have to add salt 3 times ish a year.

        1. If the bypass is permanent and no other leaks spring up then it should be fine. Salt doesn’t leave your pool unless the water drains or it is taken out little by little from swimmers splashing and getting out of the pool.

  9. Need for adding salt: I agree that salt does not evaporate. But, if your chloranator is not properly grounded or possibly faulty it will not produce the correct electrolysis. This could cause the need for adding salt.

  10. Hi, we added a water softener to our house, which is connected with the water we used to fill our pool. We live in northeast florida. The pool is a 24 round doughboy, with an expandable liner and deep end in the middle, half in the ground. We noticed our water levels starting to drop around October of last year. We are losing approximately 1 inch per day. We have checked all of the areas everyone says are prone to leaks. I have not been able to locate any and everything seems to be fine. I did however recently locate a slight drip around the filter around the neck, and not sure if that cause so much water loss. I have since tightened the screws. My question is could the water softener cause a greater amount of evaporation? The pool has only been since Oct 2016. The water loss began about six weeks after we had last been in the pool. I am open for any suggestions!!

  11. we have a heat pump- does that cause more evaporation? I am usually still running but because of other commitments we knew we wouldn’t be using the past two weeks and shut the heater and I noticed the water level hasn’t dropped as much- we don’t lose much over winter maybe add water 2x over winter- but in summer we need to add water every day we did bucket test dye etc and can’t seem to find leak

    1. Heat pumps can uptick the evaporation rate of the pool. For a visual example, if you run a hot tub on a chilly night the amount of steamy mist coming off the water is going to be thicker than it would be on a summer night. Also, lack of humidity can be a factor of water evaporation.

      I don’t know where you are in the country, but an Arizona summer is going to be a lot different (and longer) than a summer in Minnesota. it all depends on where you are.

  12. Patrick
    What are your thoughts on adding stabilizers? I have a 30K saltwater pool which I had put in five years ago. I have seen the same high ph readings in the past but this year I added ph minus and my pool is currently reading on the lower end of normal ph. I have resisted putting in stabilizers as I have heard that once they are added they accumulate and can only be removed by draining the water. I am definitely at the low end of the stabilizer, but have resisted it so far, thoughts??

    1. I’m in Southwest Florida. If we didn’t have stabilizer in the pool we would stand with a jug of chlorine and poor it in all day long. (ok, just kidding) But the importance of stabilizer is HUGE. The stabilizer reduces UV evaporation of chlorine. If you are careful and only add like a pound or two a week until the desired level of CYN has been met, then you are technically done and shouldn’t have to worry about the chlorine levels as often ( the stabilizer keeps the chlorine in the pool). So just be careful and add only what is needed. Stabilizers are like salt. They both do not leave the pool unless you drain the water or it gets diluted by rain.

  13. I have a new 20,000 gallon pool. A leak was confirmed in the skimmer and fixed. I am now filling my pool twice a month in the winter time (60-70 degree weather) in Texas. It drops about 3-4 inches over 10 days. I had the company come back who tested and said we don’t have a leak. We do have a lot of wind where we live. Does it seem accurate that we are losing roughly 1.5 inches weekly? It isn’t even summertime yet. Concerned I still have a leak. I plan on doing the bucket test after it stops raining. Thanks.

    1. Water should not be evaporating that fast in Winter. We are in Florida, but we do not need to fill it up that much. But, we get more rain than you.

      Have you tried using drops of dye in the pool to find leak in the pool basin? With the pump turned off a few drops of food coloring dye to your pool at a few location in your pool. If there is a leak in the basin, the dye will be drawn to it.

  14. We have had a lot of rain yet my pool hasn’t overfilled and neither has my neighbors is this normakl to not have to drain water out could water evaporate that fast

    1. It depends on the temperature and the amount of rainfall. If you only get a half inch of rain in a week and the weather has been warm, then the two may offset. Unless you see a drastic change in water level and/or you need to top off your pool every couple of days I would leave it be.

  15. Patrick – salt does not leave the pool with evaporation – the concentration of salt would actually rise if it’s only due evaporation. Then when you add fresh water it would go back down but you should not have to add much salt.

    1. The white marks or stain may be scaling caused by excessive calcium. To get rid of the stain: fill a spray bottle 1 part muriatic acid and four parts water, spray the stains with the solution, then scrub with a soft brush to wipeout the stubborn stains.

      But if the muriatic acid does not work, I suggest a Stain ID kit to figure out the exact makeup of the stain, so you can figure out how to tackle it.

  16. Just want to say that salt does not evaporate – the water does. The salt will be depleted by the conversion of sodium chloride to chlorine. So, the salt level in the pool may remain constant, rise or fall. What occurs in a pool is dependent on the rate of water evaporation AND the rate of salt usage.

  17. Check the spider gasket in filter’s multiport valve. If the gasket is old, torn or kinked., it will allow water to continually flow out lowering your water level in pool.

  18. I did pool maintenance as a side job years ago (and really enjoyed it – it SURE beat cutting grass!!! LOL), anyhow, I had 9 pools around Central Florida that I would service once a week, and I learned that pools are like people… every single one is different.

    My most problematic pool was when I rented a house in Thailand for a couple years, and it was a small pool 12 X 24 feet X 5 feet deep end to end (much to the chagrin of my 4′ 11” wife). I had to constantly shock it about twice a week.

    Every pool is unique and assumes a personality of its own for sure.

      1. Hi Matthew,

        My guess is that one thing is that the weather in Thailand is either hot and wet (LOTS of rain) or hot and dry.

        The wet season diluted the water, and the dry season caused a lot of evaporation, so I had the hose in the pool a lot.

        It also had some rather poor engineering in the chlorination department as well = it didn’t have a chlorination system.

        I had to put the chlorine tablets in the basket filter, or use a float filter with the tablets in it, or just toss a couple in.

        I also wonder how UV rays affect chlorine’s lifespan, as I was pretty close to the equator, about as far south as Panama is.


        PS – Thanks for the articles. I enjoy reading them.

        1. Thanks for the explanation, Ken. My first guess was the tropical weather (rain and chlorine burn off) I did not consider not having a chlorinator on the pool, yikes!

          And to answer your question, sunlight does have an effect on chlorine levels. The sun will burn off chlorine if it is not protected with a stabilizing agent called cyanuric acid. Stabilizer is usually included in chlorine pucks but against the extreme conditions of a jungle climate, it likely didn’t stand a chance.

      2. I have a gunite pool 14×24 5 ft deep. The first 3 years it sparkled with the salt system very little matience. Now I have to shock it two times per week or algaee grows all over the walls. It’s driving me crazy. The trees around the pool have grown a lot. I feel it may be from the leave particles blowing in.

        1. Have you had your pool water tested at a local pool store? Post the results so we can see what your water chemistry is like. There may be a CYA issue or something else causing algae bloom.

        2. Hello,

          I was wondering if your happy with the size of your pool 14 x 24′ I’m thinking of a 12 x 24 die to septic location in my yard. Can you please let me know if you had any regret on you pool size.

          Thank you

    1. Good comment , they are very different depending on size, skimmer or over flow, location, construction, local water pH etc. Remember that in salt water pool chlorine is produced from salt and electricity. Chlorine evaporates due to sun , wind and movements in the water and therefore opposit to what everyone is saying a lot of salt can dissappear into the air as being part of the evaporating chlorine. I live in Thailand and has six months old overflow pool of 35000 gallon plus balance tank of 3000 gallon. No leak for sure. I use 100 kg of salt and 8 liters of acid per months. 1000 liter water evaporates every 24 hours ( 35 degr. C in the air and 33 degr. C in the water. Very little rain here

  19. I have the same issues. To maintain, I add a gallon of muriatic acid and one bag of salt once a week during the summer.
    Maybe 1 bag a month in the winter, but acid need remains constant throughout the year.
    Please keep me updated.
    I live in Louisiana

  20. I hate to say this but if you are adding that much salt and acid, you do have a leak. Salt does not evaporate only water does. now the splashing of water and backwashing and things that you actually take water out of your pool you will lose salt, but it shouldn’t be at the rate you are adding it. I have a 20,000 gallon pool and I have to add about 1/2 a bag through the course of the season. I live in New Mexico where the evaporation rate is probably way higher than it is in Florida. Plus if you cover the pool when not in use you lose a heck of a lot less to evaporation.
    Also I don’t know this for a fact but I don’t think salt affects the PH at all. Now the gunite (concrete) will leach into the pool that affects the PH but a gallon a week? I use about a gallon through the course of a year.

    1. Hi Greg,
      The more I think about this I do agree with you that I may have a leak. I did have a leak detection company come out to the pool a while back and they did not spot anything. In my case I get my pool to 3,000 Parts Per Million of salt and as the water lowers my auto fill kicks in to add fresh water to the pool thus diluting the concentration of salt 2,200 PPM, the drop from 3,000 to 2,200 PPM is over a 30-45 day time period or so. I now need to find out what is causing the water loss, normal evaporation or a leak? Since salt does not leave the pool through evaporation it does seem as the culprit is a leak. I believe the same issue is plaguing my pH levels, the water loss means the auto fill kicks in and adds fresh water to the pool, my fresh water source is from a well which is hard water and very alkaline which drives up the pH level I then have to add the larger amounts of acid to lower the pH. As I write this comment I am even more convinced that I may have a leak 😉 Our research online has identified many studies which do show that pool salt systems do raise the pH in your pool, this post on “Trouble-free Pool” does a good job Explaining Why Pool Salt Systems Raise Your pH. Greg thanks for your comment and I will let you know what transpires.

      1. One thing I learned early in my 20 years as a pool owner was cap off the overflow, and drill a 1/2 inch hole near the top of the cap. The overflow opening had internal threads, and I ground down a PVC cap to remove the hex head corners, and just screwed it in. Then I drilled a 1/2 hole near the top. You can barely see the cap behind the grate. The original overflow on my pool was slightly below the ideal water line, so it was easy to accidentally dilute your pool as you fill it, with the excess just going out the overflow, even with an auto-filler if not set perfect. On those rare occasions I need to remove water due to too much rain, I just remove some with a hose connected to a valve I put on my cartridge filter. Now, it will drain more slowly, starting about 2 inches higher than before through the smaller 1/2 inch hole in the cap, about an inch from the top of the coping.

        This gave me a water reserve buffer, and cut down on my water bill, as most water that would normally overflow is saved, then it later evaporates off: those extra few inches are conserved instead of overflowing, and it also help to cut down on diluting my balance.

        Of course, this method might depend on your pool setup, as they say YMMV, but I thought I would point this out as it may be a useful tip for others. And yes, this can cut down on skimmer efficiency if the water level is too high, but everything is a trade-off. If you change your mind, remove the cap! Or make the hole lower, a different size, whatever it is that works best for your conditions. You can also rotate the cap out a little to turn the hole lower, since being 100% sealed is not a big concern when under very little water pressure.

      2. If you adding so much salts and chemicals, it is due to a leak. Check the pipes (before pump and after pump) as well if the pool is not leaking. Other culprits are around the skimmer, jets, drains and lights. My pool was leaking through the conduit bringing in the electricity to the lights (was not sealed).

  21. Dear Patrick,
    I am in the same boat as you. We built our first pool after 35 years in the pool construction business. I have seen just the opposite. We have only 10,200 gallons and only placed 1 bag of salt in a full year.
    You don’t loose salt due to evaporation, the salt stays in the water. The only time you loose salt is when you waist water, (back washing) or heavy rain.
    I have carefully documented my cost and I spent $40.00 in the whole of 2014.
    One gallon of acid, one bag of salt and one gallon of scale tech. That’s it!

    Kirby Kilfoy

    1. Hi Kirby,
      I have not completely ruled out the possibility that I have a leak and the more I think about I’m getting more convinced that I do have a leak. I did have a leak detection come out to my pool with camera’s and some pretty advanced leak detection tools and they stated I did not have a leak, but they could have missed it. Since salt does not evaporate out of water it does seem that is due to a leak…..my water level is dropping and then I’m refilling the pool with fresh water which is diluting the concentration of salt in my pool below 3,000 Parts Per Million (PPM) resulting in me needing to add additional salt. I need to revisit why the water is dropping in the pool is this from normal water loss due to evaporation or am I having a larger amount of water loss then most due to a leak? I am going to have the pool looked at again for a leak to see if anything shows up and I will post my findings here.

      1. Check the backwash exit pipe. Water might be leaking out because the gasket is crimped in the selector valve or the gasket needs to be replaced. That solved my problem of water loss. A crimped gasket that allowed water to leak out.

        1. We lost a great amount of water as well and it took us a while to figure out where it went. To make a long story short……we lost the water due to a faulty spider gasket. After we replaced it…..all is well……no more water loss other than from evaporation or occational back wash.

      2. I enjoyed reading your article. It is Spot On! My husband has been working doing pool repairs and service for over 20 years, but did not actually own a pool until we move to Florida in June, and purchased a home with a pool Spa combo.
        We are at constant odds over how to maintain our own pool. I am the primary caretaker of our family pool. He works 40 hours a week installing pumps and heaters and salt systems and repairing ones that have broken. He is the best of the best at his job, but when it comes to actual pool maintenance, he falls short.
        I was really happy to read your experience with evaporation. Just this past fall I could have sworn we had a pool leak because of how much water we were losing overnight. I spent endless hours measuring water at different times of the day. Taking pictures for comparison. Whatever I could think of. I just could not believe that the water was evaporating out of the pool at that level. Apparently it was LOL! I am glad that I am not the only one who experienced this brief level of insanity.
        Thanks again a great, and totally relatable article.

      3. salinity in swimming pools only drops when water is lost. salinity is not lost through evaporation. so if your adding salt you are losing water.
        liner pool? gunite?
        just looking into pipes is useful however pressure checking each line is preferred first as its less time consuming and more definitive. once a leaky line is detected. then grab your Geophones and listen for the bubbling leaky compromised ppie underground.
        I do it everyday for a gunite pool company.
        did a diver check your hydrostatic valve or pool pops, depending on your location.

        1. obviously i am only referring to your paticular scenario that you have described, when saying salinity only drops from a leak. as torrential rains drops salinity.

      4. I have a 10000 gallon saltwater pool in Venice Florida. I noticed pool level dropping as well as needing to add salt more often then normal.
        I did have a leak detection company find a small crack inside one of the Jets. That was leaking about 100 gallons a day. After the fix, with pool epoxy, my pool loses five eighths of an inch in a full seven days due to evaporation. Also my salt level has remained the same. It actually goes up in concentration after a week of evaporation and when I add the water back it’s where my salt concentration was to start with.
        Everywhere you read evaporation of 1/4 inch to maybe up to 1/2 inch per day is normal. I just have not in any way experienced that level of evaporation. If you carefully check your salt level and it continues to drop in concentration so that you have to add salt regularly then you most likely have a leak.

        1. I just want to add that if you do not have a saltwater pool , many people still add salt to their chlorine pools at around 1000 to 2000 PPM to soften the water. If you do that, you can then use that salt level that you start with to check for any salt loss concentration in your chlorine pool.

    2. Dear Patrick,
      My experience is the same as Kirby’s. 1 gallon of acid, and 1 bag of salt per year! I live in Northern California, so probably don’t have as much evaporation as you except during the summer, but as everyone has said, “Salt does not evaporate.” So, there has to be some other explanation to using that much salt. Somehow, the water in your pool is being DILUTED, not evaporated, and that is causing the reduction in Salt. If you can track down how/when/where that dilution is occurring, then you’ve got your answer. A leak, or your kids splash a lot of water out of the pool, or going out the overlow, are all possible reasons…
      Good Luck, and thanks for your messages.

      1. Only if you’re pool is over flowing, backwashing can be a reason for loss of salinity also. When I backwash I put my Water hose in my return inlet so I won’t loose as much water out of my pool.

    3. I was reading all the comments and I too have a salt water pool in the HOT Texas Gulf Coast. We stand at 30k gallons and in no way can you compare a 10k gallon to his 40k. I agree with you on the salt not evaporating it crystallizes and stays in except for us when it rains we get 2-3-5 or more inches per storm, last year we got 50”+ when Harvey came by so yes we use salt. He is in Florida and I know it rains every afternoon from personal experience. Also our higher temps require more acid as well, we use a half gallon every 5-5 days and our pool is smaller. We have 800+sq ft of water surface we will use more chemicals. Still how you only used 1 gal of acid in a year has me baffled, do you check your ph weekly? I wonder, any way I too was in the business except we informed our clients better regarding the upkeep and I knew what to expect. I hope your experience is transferred to your clients as well

      1. I seem to need to put acid in every few days. In Southern California. 20,000 gallon pool about. Possibly a bit less.

    4. I was going to mention the no salt loss due to evaporation as well. My pool is about 33,000 gallons and usually need to add 6-8 bags once I take the cover off, Dorian it down to the skimmers, plus backwash 4 or five times in the first week. I may add 3 or 4 bags over the summer due to kids splashing water out and what have you

    5. Would the bucket test only hold true if the pool had same surface area? So a 25,000 g pool with 800 sqft surface area of water would have more evaporation but the measurement in depth hold true?

    6. Because of the surface area of water exposed in a pool, the evaporation would occur more rapid than in a bucket, yeah? I’m not sure the bucket test holds true?

      1. Bucket test is accurate, makes no difference the different volumes. Temperature and climate decide the rate of evaporation.

        1. The bucket test is not as accurate as some people think. The sides of the bucket stop evaporation due to wind. If there is no wind during the test period the test may be reasonably accurate. If there is a lot of wind, the pool level will drop more giving a false reading.

    7. Yeah but in places like florida we can get 2 or 3 inches of water in one storm.. which for a 50″ deep pool can be 5% dilution just in one storm. I have an automatic overflow so the water just gets pushed out to the lawn instead of overflowing the pool I like the author thought for a long time I had a leak. During the summer I probably add one bag every 3 weeks.

    8. I have a 60,000 litre pool and I use a lot more salt obviously because my pool is 6 times larger. I use between 8 to 10 bags of salt per year. I have an automatic salt water chlorinator and I run the filter for 5 hours per day all year round even during winter. I agree that you don’t lose salt from evaporation. We do have a rainy season sometimes in our area and there is a lot of water that needs to be pumped out of the pool. This is where the main salt loss is.

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Poolside Chat Episode #41: Salt Chlorine Generator Percentage

In today’s episode of Poolside Chat, Rob and Matt tackle another common swimming pool question: At what percentage should I set...
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Poolside Chat Episode 10 Zinc Anode Rust Prevention

Video: Poolside Chat Episode #10 – Zinc Anode Rust Protection

This is Poolside Chat where every week we answer your questions on how to fix and maintain your swimming pool. Poolside...
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Dirty Spa?

Why Is My Spa Dirty? Part 2: The Draining

Here comes the Double, prepare for Trouble! This is a continuation of our previous blog post “Why is My Spa Dirty?”...
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Poolside Chat Episode #29: Best Above Ground Pool For Salt Systems

Poolside Chat Episode #29: Best Above Ground Pool For Salt Systems

This is Poolside Chat where every week we answer your questions on how to fix and maintain your swimming pool. Poolside...
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