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I am new to the BBB method and have some numbers I am questioning. FC 10 CC 0 TC 10 Ph 7.5 T/A 80 CH 320 Cya 80 Salt 3100 Temp 85 I have a 8600 gal pool spa with a spa spillover in extreme South Florida gunite I beleive. It is between 2 houses and doesn't actually get too much sun. 1.5hp...

When my filter pump shuts off for the night I sometimes get a loud thumpimg noise from the pipes. If I open the filter bleeder valve I can get it to stop but was wondering if anyone knows what causes it and how to stop it. I have a 1.5hp superpump, a 90 ft^2 cartiridge filter and a heatpump...