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  1. K

    Pool numbers

    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...
  2. K

    Thumping with pump off

    Thanks will check it out.
  3. K

    Thumping with pump off

    It does pump out water with the pump running, all works fine, good flow, no bubbles, pressure is correct but when the pump turns off I get a banging sound that goes on for hours. If I releive pressure by opening the relief valve allowing air to enter the system the banging stops, if I turn on...
  4. K

    Thumping with pump off

    yes that is the air bleed, no the heater is not running. Everything is off when the bangin occurs, overnight it gets softer and softer till it stops. It does not happen all the time only sometimes. I beleive after checking online it is called a water hammer but I don't know how to stop it.
  5. K

    Thumping with pump off

    no it sucks air in.
  6. K

    Thumping with pump off

    no there is no air in the pump basket when the pump is running. It starts when I turn off the pump and stops when I let air into the filter canister.
  7. K

    Thumping with pump off

    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...