We have installed a pressure / vacuum gauge at the pump to get all the correct numbers to calculate the TDH and to make sure the pump is not undersized.
* Pool volume: 9000 Gallons / 34,000 Liters
* Filter: 90 GPM, Pentair EasyClean DE Filter EC90
* Pump: Pentair Whisperflo 1/2 HP 90 GPM
* Flow...
