Hi guys. I just recently bought an older house with an underground pool. I've never owned a pool before so my knowledge on service and maintenance is very limited but, I've been reading a lot and watching a lot of videos which has helped. So my issue is that I went to take the filter out to clean it for the first time and I also cleaned the basket right before the pump. I tried using a garden hose to fill the pump and prime it before putting the lid on but, the water level would not fill up. I have a three way valve on the suction side with a drain line connection and a skimmer connection. At first, I thought the water was just going back into the pool or something but then I saw a video of a guy priming a pump for a pool with the same exact setup as me and he filled his pump to the top and it stayed there..
Possibly related issue here as well. I always have to bleed air out from the top of the filter cartridge every time I start the pump. Is that normal?