I have a 1 in bulkhead as an inlet on my closed loop, there is water dripping from it at a pretty constant rate. Is it possible that it is to tight? It is on the back of my tank an is very difficult to get to but I know it is on pretty tight, I cant tighten it by hand anymore, and have used a wrench on the inside to tighten it further. Is there a way to fix this? I really dont want to empty the tank any suggestions are appreciated.