Pool Chemistry Problem

What is floc, clarifier, stabilizer, cyanuric acid,
algaecide, brightener, dichlor, sodium hypo,
sodium bisulfate, ....??

Pool Chemistry Problem

Postby jaurich » Wed 06 Jul, 2011 19:35

I have a 21' above ground pool that is having issues. I think my mistake was using tabs with stabilizer, and with 0 chorline for a week or so, I kept adding tabs /shock which raised the CYA level and TA. I read this forum yesterday, and added tap water (city) and added the 182 oz. 6% bleach last night. This morning chorline was still 0. I took a sample to american sales here are their results:

TC -0
FC -0
Alkalinity - 140
Ph - 6.4
Hardness - 200
Stabilizer - 60

I was told to fix ph to 7.2 first, then add .5 gallon of muriatic acid to fix the TA, then fix chlorine with powder shock vs liquid shock.

Can someone confirm which issue I should target first.

Much Appriciated.

Jeremy from Chicago

chem geek
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Pool Chemistry Problem

Postby chem geek » Wed 06 Jul, 2011 23:32

If the "powder shock" is Dichlor (or Trichlor), do not use it. If it is Cal-Hypo, then it is OK to use, but may cloud your water since your TA is high. It would be better to use chlorinating liquid or 6% unscented bleach. See Defeating Algae.

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