After a period of time, the contaminates in a sand filter start to clog the sand to the point where water flow is significantly diminished and the pressure gauge rises 8 to 10 psi above normal operation readings. To clean out the contaminates, you have to backwash the sand. This guide shows you the steps in backwashing a filter.
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Anonymous Posted: 8/9/2012
When I backwash my Hayward sand filter there is not movement of water anywhere. The eye glass has no water moving around in it. When I put it on rinse...same thing. It just makes a humming noise. I'm worride that I have ruined my sand with drop out chemical. I have used drop out twice now and it does exactly what it's supposed to do, but the returns blow the dirty water right back into the pool?? My pool builder is stumped and we ended up plugging the returns as to not get the waste water back in the pool. NOW i fire the system back up again and we are at cloudy water yet again... I can't help but think my sand has problems. My pool builder said if drop out gets in the sand filter that it sets up like concrete. Is it even possible that the spider gasket can come wrong from the factory? Can anyone help me here? Thanks!Reply
InyoPools Product Specialist Dennis R. Posted: 8/1/2012
Hose connections - Yes you need to put an open ended hose on the waste port to drain waste water away from the pump to an area that will take excess water. Check your local restriction. Some municipalities govern where you can discharge pool water. On the hoses from the pump: the top (discharge) port goes to the return port on the pool; the front port going into the strainer basket connects to the pool port going out of the pool.Reply
Anonymous Posted: 7/30/2012
I am struggling with figuring out a Hayward S166T Sand filter. Do I put any type of hose on the "waste" nozzel? And where does the backflow go? I am pool dumb. Also, with a hayward 1hp pump. Where do we connect the hoses.Reply
InyoPools Product Specialist Dennis R. Posted: 7/20/2012
Backwasher - Sometimes when you are cleaning up an unused pool you use too many chemicals and the pool chemistry goes out of whack. Try using a product called "Pool First Aid - pn 03122. This product has helped many customers eliminate cloudiness and foam. Also if you haven't changed your sand in 6 years, you might consider doing that also.Reply
Backwasher Posted: 7/17/2012
Hi,We had a long repair of our pump and so the pool was quite green. It looks better now (after CL and algeacide); however, I can't seem to clear everything during a backwash. I've backwashed for long periods and have rinsed afterwards. The water never runs 'clear'. And, when I put it back to filter, you can see 'white' water coming through the jets so each morning, I'm clearing the 'foam' off the top of the pool again.
Suggestions?
Reply
InyoPools Product Specialist Dennis R. Posted: 6/18/2012
concern - If you have a lot of debris or algae in the pools, vacuum with the filter in "Waste" mode to keep it out of the filter. If you have a relatively clean pool, vacuum in "Filter" mode.Reply
concern Posted: 6/17/2012
Whay setting do I use to vacuum my pool?Reply
concern Posted: 6/17/2012
Do I need to vacuum on waste?Reply
LittleShaggy Posted: 6/3/2012
All ways wondered if I was backwashing my sand filter right.Reply
InyoPools Product Specialist Dennis R. Posted: 5/21/2012
funeeldy - Check to see if you still have an o-ring. If that's not the problem, it may be time to change out the air bleeder.Reply
InyoPools Product Specialist Dennis R. Posted: 5/21/2012
Haven't heard that you have to backwash multiple filters one at a time. It is true, however that you should not change your filter setting with the pump on.Reply
funeeldy Posted: 5/20/2012
I have a tagelus pump/filter and the air bleeder is leaking water no matter how tight I make it. When I release it, the water is being pushed out at a high pressure. What am I doing wrong or does the bleeder need to be replaced?Reply
Anonymous Posted: 5/18/2012
We have 4 sand filters for our pool. It is my understanding that we can only backwash one filter at a time and to never move the multiport lever to backwash while the pump is on. Is this correct? Thanks.Reply
InyoPools Product Specialist Dennis R. Posted: 5/15/2012
If you are just opening your pool and it is full of debris, you may have to backwash several times. Try to get as much of the debris out with a net. Or if you haven’t changed your sand for 5 years, you should do that now.Reply
Anonymous Posted: 5/12/2012
i seem to have little pressure after a hour of normal running timeReply
InyoPools Product Specialist Dennis R. Posted: 4/20/2012
gayle - I would check your multivalve spider gasket to see if it's damaged and allowing water to flow in the wrong chambers.Reply
gayle Posted: 4/18/2012
After backwashing a sand filter, it won't seem to start filtering properly again. E.g. pump tank isn't filling and gurgling and pressure not rising on filter. Any ideas?Reply
InyoPools Product Specialist Dennis R. Posted: 1/23/2012
Mae1927 - Tagelus multiport valves before 1993 did not have an air bleeder valve and had to self-purge the air through the return lines. If your valve is 1993 or after, there is an air bleeder valve towards the bottom of the valve next to the lower port - about the size of a quarter. Turn knob counter-clockwise to release air.Reply
Mae1927 Posted: 1/22/2012
How do I air bleed on the tagelus deluxe?Reply
InyoPools Product Specialist Dennis R. Posted: 7/11/2011
On spewing sand. Sand dumping into your pool usually means you have to replace the spider gasket. Other potential problems are broken laterals and too much sand in your tank. Maintain at least 6" between the top of the sand and the top of your tank.Reply
InyoPools Product Specialist Dennis R. Posted: 7/11/2011
On the check valve. Do not remove the check valve. It's there to keep water from backing up in your system when the pressure is off. What filter system you have is not an issue.Reply
Anonymous Posted: 7/5/2011
I have a sand filter when i backwash it spews sand into the pool what is going on with this?Reply
Anonymous Posted: 7/3/2011
I,m changing from a cartridge system to a sand filter system do I need to remove the check valve that I now have on my system piping?Reply
bill Posted: 6/26/2011
pool has low pressure and when i backwash i see water in backwash glass and leakin out of backwash hoseReply
Julzvic13 Posted: 6/19/2011
My filter is working fine but the water runs very slowly on backwash???? Any suggestions on how to fix this problem?Reply
Crocket Posted: 6/10/2011
my vacuum doesn't seem powerfulReply
Hfox Posted: 6/8/2011
The filter has air - the jet is coming out very slowly. I backwashed, but it sporadically comes out (it usually comes out rapidly). What is wrong? Sand was replaced 3 years ago.Reply
Don Posted: 5/23/2011
filter runs fine but will not backwash, water comes out very slow the same on rinse,Reply
InyoPools Product Specialist Dennis R. Posted: 9/17/2010
Changing the sand in a pool sand filter will vary depending on the use of your swimming pool, but on average it is changed ever 5-7 years.Reply
Anonymous Posted: 9/17/2010
Thanks didn't know. How often do you change the sand?Reply