Problem with vari-flo multipoer 1.5 and Hayward DE fiilter

Yes, it is the "spider" gasket inside the valve that has gone bad. It needs to be changed out. They are not expensive. Go to YouTube and enter "change spider gasket" there are several videos. Good luck with it!

You say that you can see a large flow through the pump cover but that water must be coming from the pool somehow. It must be coming through the main drain. If you turn the main drain off then the flow from the skimmer should increase considerably. If it doesn't the issue could be caused by a nearly plugged line between the skimmer basket and the pump. I have had similar symptoms and I started by using a drain jet device on a hose to force water backwards from the pump to the skimmer with the main drain valve turned off. I couldn't clear the plug so I had to dig the line up and found a bad area of the piping where it made a reduced pipe size 90 degree turn. Sycamore bark, leaves and twigs were stuck at that pinch point.

I hope this helps.

I don't have a manual but basically the intake of the filter connects to the area around the grids. The inside of all the grids connect through a manifold and pipes to the output port of the filter. The pump output should be piped to the return piping of the pool. If you have a heater it should be connected between the output of the filter to the return piping of the pool. If you have a chlorinator the output of the heater it should be connected through a metal-free check valve, into the chlorinator and then to the return piping of the pool. I hope this helps.

Hi, Have you checked the filter(s). If they are clogged with de-bree you can not get proper water flow. Clean out and replace filter

Try checking the users manual. I don't have an exact answer for you, unfortunately, but the users manual for these pool filters is comprehensive and has diagrams. Hopefully, you can find your answer there.

http://www.backyardcitypools.com/images/hayward/perflex-system-manual.pdf

Is your pool green? This will cause the filter to plug up. When you say stops working do you mean no water flo, passing dirt or are we talking about the pump not moving water? Can you clarify this problem some?

check pump basket make sure its clean if you have de filter it is dirty back wash and add new de make sure all valves are open

Filter, only a few moments, and as soon as the pump primes.

Check to make sure the plumbing is in the correct inlet/outlet on the valve head. Sounds like it's plumbed backwards. Inlet is from the pump, out to pool...