I am a new pool owner - inherited a good size above ground pool with the house we just bought. It has been a long and iterative process to get everything up and running smoothly, but I got there thanks to a lot of help on this forum. Pump was leaking badly so I've replaced all of the gaskets and impeller and also replaced all of my hose couplings - the filter is about 12 feet from the pool because that is where the electricity is so I needed to couple the hoses to get the needed length.
So, after all of that, the pump basket just does not stay completely full after say a 10-15 hour period. It is not bad, still near the top, but clearly some air is getting in somewhere somehow and removing the lid to re-prime on a daily basis is a pain and messy! I've checked and tightened all of the fittings numerous times and do not see any problems there. No water spurts anywhere when I turn things off either. I have noticed a very slow and inconsistent drip that might be originating behind the impeller - is it possible this is causing the air to get into the system and perhaps that gasket is not seated just right?
Also the pump at times creates a whirlpool effect in the skimmer and sucks some air. The water level in the skimmer stays high, it is just a very thin whirlpool that gets created in the center and will go down to the skimmer basket (again with the rest of the level still high) with a very obnoxious sucking sound. Putting a small stone in there solves this problem so I don't think this is the source of my air intake but I have to think there is something else at work here, any thoughts? Pump too strong maybe? It is a 2HP, pool is about 20,000 gallons.
Finally, given the distance from the pool would I be better off replumbing the whole thing with PVC or something better than the flex hose from the pool store? Do you think that may solve my air leak problem? I am wanting to make improvements for the long term, but for now I am just interested in not ruining things this summer.