Finally figured it out...stupid me was trying to put PVC on the outside of the bulkhead! On the inside, it's the slip type, so i'm going to put a piece of PVC pipe on both ends and then cap both sides, so if one leaks the other will still be in place.
One final question...is it possible to cut out the overflows with a razor blade without damaging the sealant of the tank? If I can't, I think I'll just hacksaw/utility knife it off at about 2" high and bury it under sand.
One final question...is it possible to cut out the overflows with a razor blade without damaging the sealant of the tank? If I can't, I think I'll just hacksaw/utility knife it off at about 2" high and bury it under sand.