rfeiller, Did you follow his suggestion of using a 1/2" stand pipe that fits into a 3/4 bushing and then adapter to a 1"bulkhead fitting? I ask because I have a 1" standpipe coming straight out of a 1" bulkhead fitting. It would seem that he creates an inverted Affnan-like bell at the bottom with this move from 1/2" to 1". (Or is this completely unnecessary?)

I never did glue the 2" cap to the 2" pipe. Is seems very well sealed and the other one works great. Could this be my problem?