Water Pump Being Weird. Is it dead?
My pump is being weird. I've charged the water lines via city water, and all is well. No leaks detected. But when I try to run the pump off a full water tank, it seems to struggle a bit. When I...
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Another thing to check: If there is a short hose for sucking anti-freeze into the lines, check for a loose cap on the end. (The cap on mine was loose once, letting the pump suck air into the lines with what sounds just like your problem.)
