I'm very new at pools...just got mine opened and almost clear enough to swim, just to find out I having trouble with my pump. I have a DE filter. It was cleaned out and had the DE powder added back in. However, After about 10 minutes the pump starts losing suction power and the pump basket has a significant amount of air inside of it.
The pool water is high enough, and I have made sure the Overreen is okay and increased up. Also, the impeller has been checked, and is fine. What is weird is that the filter seems to keep full pressure, and I can shut the pump off, let it sit for a whole, turn it on and it will be full strength without repriming it.
Now...I just noticed that when I put the multiport valve on recirculate, the pump continues to work at full speed and capacity. What does that mean? I'm such a novice that I'm not sure what that fact rules out!
Thanks for your help!