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Solar-bubles


JFS

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  • 2 weeks later...

JFS, Your solar panels should have a drain down valve on them. The valve opens when the pump shuts off and gravity takes over. The valve allows water to drain from the panels. What maybe happening in your case is that the valve is opening because the flow thru the panels isn't enough to hold it closed, and it pulls in air. Or the valve could be hung open. If its the first, I would check the filter and/or the pump. Could be as simple as a dirty filter. Or maybe a dirty pump basket. If you have the means, go up on the roof and see if you can hear it leaking (Hissing) while the pump is on.

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