Folks, I need some help here. Small leak from bulkhead connector. Have replaced both O rings, still leaks. Have now ordered the actual bulkhead fitting. Some questions though.............is there a special way of tightening the bulkhead connector to the intenal piping assy? I'd like to get it tight but the small spacer starts to spin and that has to be in a certain position as it is shaped to fit onto the rounding tank. The leak is coming from the joint between the bulkhead and small spacer and is still there after replacing the O ring. I never had a leak until I replaced the multi port gasket. Maybe coincedental, but as soon as I reoplaced that gasket I got leaks at the bulkhaed connector and small drips from the multi port gasket cover. I'm wondering if somehow the pressure has increased in the system, but the filter dial reads 15 psi and that is standard. How can I tighten that connector without causing the small spacer to spin and go to an offset position, which then means the spacer connection leaks.