So fixed the impeller screw coming out by buying new impeller and screw it does't come out anymore. Now pool pump leaks. Somewhere between 1 and 2 when I fill up to start it up it starts leaking. Never leaked before is there a seal between them? or is it the pump itself that's leaking? Thanks this is beyond aggravating in the last week this is the 3rd thing that has gone wrong with this pump.