My pool won't hold chlorine

[Watermom]

Try taking your chlorine up to 6 each evening instead of just 4. Actually, with a cya of 30, I don't think it is all that unusual for you to lose 3-4 ppm in a day. Your chlorine won't remain steady. It will drop as it sanitizes the water. You may decide that you want to bump your cya up a little. Anywhere between 30-50 is good.

[mwsmith2]

Yeah, I'd lean more toward the 50 ppm cya for your situation. I wouldn't worry about borax. Even strong borax solutions are no more injurous to your skin than salt water. As for ingesting it, well, you have to take into account dilution. 1 ppm is equivalent to 1 drop of ink in a 40 gallon barrel. I'd be far more concerned about the low Cl levels and subsequent bacterial blooms rather than slurping down a very dilute cocktail of pool chems!

Michael