Hello there, I am new to these forums and a one season pool owner, with an about 30000 Gallon pool in northern Mississippi.
I have a Jacuzzi 1UMF-S pump hooked up to the pool with a manufacturing date from 2002.
I purchased the house about 1 year ago.
I had the pump running on a timer all summer long for several hours every day without any problems.
Last fall I replaced part of the plumbing as the Polaris 280 booster pump had problems and the pump head was leaking. Originally both pumps were plumbed in without any screw-type couplings to remove and service the pumps without having to cut the PVC lines. I added several of these joints into the system to be able to service the pumps if needed. -- Well I need them now.
When I opened my pool this year, installed all the drain plugs in the pumps and filter and turned on the electricity, it took a few minutes for the pump to pull the water into the strainer and then into the filter. It ran fine for several days without problems and almost no air in the view glass. I was able to filter, backwash and rinse without any problems.
Now in the last few days it seems as if the pump on start up cannot produce enough suction anymore, and after running for several hours when it turns off, after it established suction and ran, the water almost instantaneously rushes out of the pump and it seems out of the filter as well and the entire topside system seems to be dry, as if there was a large vacuum somewhere in the system.
What am I doing wrong ? What do I need to do ? Thanks a lot for any help.