hi all,

i'm getting some air in the return, and after some experimentation, i'm 99% sure it's the fitting that screws into the pump. the issue is that when i replaced the pump, i wanted to save the piping that leads into it: a short section before the fitting, which leads into a T fitting, then splits to the two returns coming out of the ground, which have compression fittings.

anyhow, when screwing this into the new pump, it's not like i can choose exactly how tight to make it, since of course the piping has to line up. so i KNOW that the fitting is not as tight as it could be, but i can't get another full turn out of it without risking over-tightening and cracking the whole mess. i typically use plumbers thread sealant. i then tried a few wraps of teflon tape along with the sealant, and it's better but not perfect. i really, really don't want to have to redo all of that piping. suggestions?

thanks!