I have a water feature pump that runs a waterfall and deck jets, when I turn the pump on it takes about 1 min for it to get water flowing and up to normal prime. when I turn the pump off it loses prime within 20-30 min. This pump pulls water from the main drain and returns water directly to the waterfall and jets (does not go through the filter). I am speculating that the because air can come in via the jets and waterfall it is allowing the water to fall back into the pool. I have considered doing a check valve on the pump outlet to prevent the loss of pressure from the waterfall or jets.
Curious to know what the pros think
Curious to know what the pros think