Confused about suction side

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C

commizzar

Member
Apr 29, 2014
8
Chesapeake, VA
My issue is this. My brand new Hayward VS Pump will only prime correctly when in recirculate. When in filter mode it struggles to prime. There are a small amount of air bubbles out of the returns in filter mode but none in recirculating mode. Logic tells me that the spider valve is under pressure so that would be a leak not an air bubble out of the returns. Any thoughts ?
 
commizzar said:
My issue is this. My brand new Hayward VS Pump will only prime correctly when in recirculate. When in filter mode it struggles to prime. There are a small amount of air bubbles out of the returns in filter mode but none in recirculating mode. Logic tells me that the spider valve is under pressure so that would be a leak not an air bubble out of the returns. Any thoughts ?
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How dirty is the filter?
 

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