Hello from Australia...
Hope all are well - and maybe can shed some light on my situation. I have done a few searches yet can't really see an answer.
I bought a property around 4 weeks ago and moved in - has an in-ground pool. Previous owners (renting) said the pool pump always worked fine.
Issue is - after the pump has run - after an hour or so the water drains from the pump to the level of the bottom of the inlet hose - ie filter cage itself is full - but that's it.
As you can see from the photos - it is a fairly straight forward setup. I replaced the one way valve (the black valve in the photos) but still no good??
I would have though that the one way valve would have fixed the problem - but no. There are no leaks between the pump and the one way valve (suction side).
I know the valve on top of the pump has a slight leak - but I cant see why this would cause water to seep past one way valve? ANy ideas?