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I have been monitoring CH for a few weeks and am consistently getting 175. This is really unusual as we live in a very hard water area (lots of limestone). I think the CH was low before we entered this recent rainy season. I can't even buy calcium at a pool store here bc no one has low CH...

I had difficulty maintaining the TFP method when I resumed work after summer break and am regretting it as my pool is NASTY now! We had a major pollen drop and are in the middle of acorn drop right now. We also had a few major rains. I added two bags of shock, some Alkalinity Up b/c my...

I have passed my OCLT and am nor sure how to proceed. My chlorine is still coming down from shock level. At what point will my numbers be "good". I think I remember seeing that high chlorine skewed the TA results.

I'm out of the DPD powder that came with my test kit. Leslie's does not carry this powder. Is there another product I can use while I await a refill? I'm trying to pass my OCLT and I'm going to not have enough to complete! Argh!!!

We have had our pool since March and since May I have been struggling with the pool turning green (not swamp green, but not pretty clear water). I tried using bleach for a week, but was having to add so much that I have gone back to chlorine tabs, which I know lead to higher levels of CYA...

We have had our pool since March and since May I have been struggling with the pool turning green (not swamp green, but not pretty clear water). I tried using bleach for a week, but was having to add so much that I have gone back to chlorine tabs, which I know lead to higher levels of CYA...