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From reading the Forum here, you cannot accurately measure pH beyond 10 ppm of CL, that much i understand. In one of the Forums, there are several methods to circumnavigate around the problem. One of them is by diluting the test sample (1:1 ratio) with distilled (only distilled!) water...

I have shocked my outdoor pool and it took 4 days to get it from algae green to crystal clear. the methods were recommended by TFP ( meeting the 3 criterias etc..) What i know... 1) using the pool calculator. 2) CL, pH, TA, CH, MA, CYA Langelier index. 3) Stabilized Chlor: Triclor 95%, Diclor...

Not sure if this question is for the 'Chem Geeks' or not... I'm just curious on how it all works... from a chemical ( well not a too complicated explanation). with a CYA of 0 or 100 for example, a test kit will report the 'same' reading as tho CYA is present in the water or not. Whereas, if...

how efficient are filters? i transferred my sand filter into a Zeolite media to improve the filtering capabilities. The improvements are somewhat better but not 100%. If i leave the pool alone, i get lots of fine green/yellow stuff to sweep off the bottom of the pool somewhow the vacuum just...

I think i might of done things BACKWARDS!! :oops: pool size : 7,500 gallon, ballanced + CYA 20ppm Yes i did you the pool calculator, very great product. The problem began when, I invited the kids from our neighborhood who did not shower, most wore shirts on, and the parents drinking beer in...