Why Is The pH Always High In My Pool?

Poolside Chat Episode #33: Why Is The pH Always High In My Pool?

0 thoughts on “Poolside Chat Episode #33: Why Is The pH Always High In My Pool?

  1. I have my in ground pool water checked often at two different pool places and they pretty much say the same thing after being checked except one place nearly almost always says I need to add acid and the other place nearly always says I don’t need to add it. which is right?

    1. Well you can take it to a third place to break the tie, or test it yourself using a testing strip kit, or one of those fancy electronic ones.

      Unfortunately, I cannot surmise the validity of test results, via blog comments. But the technology is ever-improving.

  2. Just how high should PH and alkalinity be in a salt water pool.? I have a newly surfaced pool and I have been told they should be lower than normal

    1. Ideal levels are 7.2 – 7.8 for pH and 80-100 ppm for Total Alkalinity. Anything outside those levels the chlorine loses its effectiveness, regardless if it is fresh or salt water.

  3. I bought on line some super algaecide plus for my in ground pool. Reading the ingredients i see copper triethanolamine complex…23.21%…inert ingredients…76.79% total 100%.– metallic copper equivalent,7.00%.contains 0.75 lbs. of elemental copper per gallon. It also states “The triethanolamine complex used in this product prevents the precipitation of the copper with the carbonates or bicarbonates in water.” My question is … Is this a safe product to put in my pool because of the copper content? I heard copper is bad for pools.

  4. I have an above ground spa. It seldom gets used during this hot weather but the ph continually creeps up to where I have to add sodium bisulfate, about a half cup of crystals every week to a 500 gal tub.
    The tub stays covered all the time. I keep the bromine level low at barely detectable because it is not being contaminated by bathers or debris. It also has an UV ozone system. The acrylic tub is over 7 years old so it is not leaching alkalines. I don’t need to add much tap water because the cover controls evaporation (about 1/2″ per month.) Yet the ph keeps climbing. What other reasons could this be?

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