I prefer slip fittings, but there is not much room for error with slip. Also with slip you will not be able to take it apart to modify it, if the need arises, you'll have to cut it and patch it back together with couplers. The reason I prefer slip is because there is less restriction, the threads on both pices will reduce the actual ID of the fitting. I also find it easier to work with, but just realize if you mess it up, you may have to replace the bulkhead. If you are pumping enough water that the small amount of restriction isn't an issue, then you would do well with a 50-50. Only the plumbimng outside the sump needs to be water tight, so just use the slip side inside and don't glue the
pvc or elbow in place, the threaded half can be used outside the sump with a male threraded fitting and some teflon tape..... Either way, I'd use the 2 X slip or the 50-50, not the 2 X threaded, there is no need for the second set of threads....
Linear Mode
