Swimming Pool Acid

[chem geek]

Each gallon of 38.5% sulfuric acid will add [EDIT] 15.7 [END-EDIT] ppm of sulfates so 6 gallons will add [EDIT] 94.3 [END-EDIT] ppm of sulfates which [EDIT] not have much affect on [END-EDIT] your water chemistry. You could compensate for this (though you really don't have to since the effect is so small) by running your pool with higher TA, CH or pH, but again I don't think this is a big deal.

We're not trying to scare you. Personally, I think you can use your 6 gallons in one season and be OK with it, but don't use it again. Eventually through splash-out, backwash (if you have a filter that needs it), and dilution from winter rains (if you live in a climate that doesn't freeze so that you let winter rains overflow your pool) will eventually reduce the amount of sulfates in the water.

I do not know of a test on the market for sulfates. Taylor does not appear to have one. That doesn't mean there isn't one out there, but I just don't know about it (maybe someone else does). I don't think it's a problem if you don't use any more sulfuric acid after this batch.

Richard