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I recently read that running your pump at night could lower the water temperature during the day. Is this true? If so, what’s the science behind it? Also, what’s the best time of day to run your pump to achieve max water temperature? TIA

When I opened my pool this year the pump was surging and the pump pot was not staying primed. I determined that the weir in the skimmer was staying open and causing a vortex, as everything returned to normal after I removed the weir. I trimmed about a half inch off the weir but the problem...

I have a Proline sand filter and 1 HP pump running my 10k gallon above ground pool. When the pump is first turned on, the pressure at the return jet is strong. The gauge reads between 10-15 PSI. After an hour or so, the pressure at the return jet begins decreasing dramatically while the gauge...

I have a Proline filter which is about 2 years old. Recently the sight glass/waste port has continued to discharge water after a backwash or draining to waste. It continues discharging water, even when switching back to the filter setting and with the pump turned off (it discharges even more...