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hi, Today I noticed something very unusual to me. In my plaster pool I found what looks like Mushrooms growing on Tile/Plaster line? These things are soft, yellow, spongy, mushroom looking growths all along the tile line where the tile meets the plaster....? We brushed it off and when I scooped...

Thankyou everyone for all your help. Please help me with the correct numbers to try for with my gunite pool. It is an old pool but it's in great shape. A few years ago we had a new quartz finish put on, it's holding up well and I really want to take care of it as good as I can. I also got the...

Hi, If I add just calcium hypochlorite to adjust my chlorine for awhile how much actual calcium does 1 lb. of Cal. Hypo. add to the water? I am going to use BBB but while my CH is low I thought I'd use up some Cal. Hypo. that I had left over. My calcium is low 140....and CYA is...

Hello all, I have been studying the BBB method since last fall and I finally got my new TFT testkit today! Please help me out. I did the CYA test 3 times to be as accurate as possible with these 61 year old eyes. I even had my son check results with me. We both came up with about 20 actually...