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The gasket makes sense. I opened a valve yesterday to check the gaskets and after I closed it, the pump was no longer holding it's prime at all. I'll replace all the gaskets and use silicon around the inner edge and see what that does. Thanks.

Gunite inground with a spa. I can control where the water draws prior to it entering my pump basket. When I draw from the pool (from the skimmers and the drain together or separately), there are lots of air bubbles coming out of my jets and I can see air moving through the pump basket (looks...

I have a suction-side airleak that I can't find. I know it's not the joint between my basket and my first valve (I can isolate those sections and pull from my spa and it's okay) and I've tried all the tricks to find it, including checking/replacing all of the gaskets in the valves. What's...

I'm getting blue spotting on my white plaster. The plaster itself was redone last year and it started getting these blue spots late last summer. Chemistry is normal (chlorine). Its on both the horizontal and verticle surfaces. Anyone know what this is?

The lines were capped to test the integrity of my Jandy valves; none were leaking and I've put them back to normal. The spa is definately backflowing into the pool through the spa return ports. I just need to figure out how to stop the water from pushing back through the filter, the multiport...

Thanks for the help. As to the spa, there is a check valve and I've removed and capped the lines. I'm still wondering about the Praher multiport valve because I can see some DE in the pump, which means it had to of come through the multiport valve. Do you know if it has a backflow stop? I've...

The pump is is not much higher than the water level, maybe 18" tops, add another 6" for the multiport valve itself. I have no air leaks at all. I'm thinking the multiport valve is not working properly; it's 10 years old so maybe some pieces need to be replaced? I do have a spa that's connected...

The contents of my filter seems to be backflowing through to my skimmer and out through my drain when the pump turns off. Does the multiport valve have a backflow control? There is always a little bit of water in my waste drain pipe so I think there could be a leak there none-the-less. If it's...