Solar backflow into pool

[CASwede]

I have a second story rooftop solar. If I shut off the pump, I get a backflow through the pump/filter/to the skimmer.

I relieve this issue somewhat by closing the solar for about fifteen minutes before shutting off the pump. Apparently this allows the pipes to bleed slowly, but I still hear clicking at my solar check valve as the water forces its way back down.

Will this cause a failure in the solar valve eventually? Should I put in a more robust one-way valve where the water starts its climb up to the roof?

 

[JasonLion]

Welcome to TFP!

You should put a one way valve after the filter and before the split off to the solar panels.

Clicking at the check valve isn't a problem. It is just the flap flapping, which it is designed to take in stride.