New pool owner (old pool/new house) here trying to gain as much knowledge as I can and I must say I really appreciate the amount of information available to newbs like me on this site.
So...here's my issues.
25,000g IG with a Hayward sand filter that I started noticing pressure issues with. I couldn't get my Navigator to function right and noticed that water was only coming out of one of my eyeballs, so I started troubleshooting the filter/pump. I noticed the top teflon bearing was broken on the multiport so I went ahead and replaced it and all the gaskets/o-rings on the multiport (and a good cleaning).
Backwashed the filter, rinsed and had water out of both eyeballs again. Hooked up the Navigator and let it run for a while. Then I started having issues with air in the pump intermittently, so I backwashed/rinsed and everything worked fine again. Sure enough, after shutting the pump off to clean the Navigator and turning back on, it had issues pumping all the air out.
I decided to go ahead and replace the sand (no idea how old) and clean the filter good. Put everything back together again and everything worked fine for a while. Hooked the Navigator up and it ran for a while then stopped. Decided to just let it run with the skimmer for a while and while cleaning leaves noticed that again only one eyeball had flow. Turned pump off and when I turned it back on, it would not pump all the air out again.
Backwashed/rinsed and low and behold I got water from both eyeballs again.
So, could the suction line be clogged? Could the pump be bad? Or is the multiport bad (I did notice water on top of the multiport but figured it may be due to the increased pressure)?
Please help me figure out where I need to go from here.