Originally Posted by 16ACE27
The pump is sucking air in on the suction side. Check fittings between the pump and the water tank. Verify all drains are closed fully. Verify the strainer dome is screwed on tightly.
Noticed on hose from tank to pump had two connections on it. One was at a diverter valve for winterization hose and then where the elbow swivel fitting is, that connects to inlet filter. That hose would spin around on both fittings. They have crimp type clamps on them. I'm going to swap out those clamps to radiator hose type clamps. Filter housing is tight, seal is good and no cracks. Do you think that's where it could be sucking air in? thanks for your idea.