Long story short: what can cause low pump discharge pressure and flow? Since troubleshooting a noisy pump, disassembling and reassembling after finding/replacing bad motor bearings, flow is visually less than pre-replacement. This is from flow rate out of the spa. Discharge pressure I think is also lower, but I also had to replace pressure gauges during this activity. I don’t recall what discharge pressure the pump previously made, from a quantitative standpoint. I thought it was over 20, though. It’s making about 18 psi now.
Any common things to check? Disassemble and check impeller? What else? I don’t see signs of much air intake. It’s been running this way essentially unchanged for a few months. Filter has been backwashed. I do see a reduction in discharge pressure after backwashing, but I don’t notice a flow change as markedly as I used to. Tia
Any common things to check? Disassemble and check impeller? What else? I don’t see signs of much air intake. It’s been running this way essentially unchanged for a few months. Filter has been backwashed. I do see a reduction in discharge pressure after backwashing, but I don’t notice a flow change as markedly as I used to. Tia