check-valve

Hi there, Long time reader but first time poster. Sorry for the long preamble, question is at the end… We just had our 20’ x 40’ in-ground vinyl liner pool refurbished by (what I thought was) one of the more reputable companies in our area (Ottawa Ontario Canada). New liner, new lines, new...

Suggestions to eliminate acid check-valve plugging? Have a Pentair IntelliPH acid dispenser with a tank-mounted Stenner pump. The Pentair 522513Z check valve plugs once a year with what looks like fine black plastic shavings. I see a very small amount of black debris in the acid tank, but...

My Pentair IntelliFlow pump draws 2400 watts at 3450 rpm (filter pressure = 14psi, having just cleaned the filter and reloaded with fiber media). That seems unusually high given the numbers posted by other users on this forum. It seems I have a garden-variety check valve installed, and I am...

I am doing all new above ground plumbing and equipment. I have a few questions: 1. Should I put a check valve on all lines both suction and discharge or should I put a check valve only on my spa return and before my SWG? 2. Do you recommend any valves other than Jandy? Is there a great brand...

My check valve connected to the plumbing for my Spa seems to be stuck in the closed position. This has been going on for about a week and I can't seem to find a solution and any advice would be appreciated. My spa is connected to my pool with an overflow waterfall. What would normally happen is...

My main circulation pump failed a few days ago and while waiting for repair I noted that my hot tub drained. From various sites on the web I understand that this is normally indicative of a failed check valve which is allowing water from the hot tub to drain back to the pool. My question is...