I recieved my a1000 and filters today. My question is the filters and pump all have -10an ports, I have saw people run a o-ring fitting on the side that threads into the port and a tapered an fitting on the other side. Meaning to connect the filters to the pump you would need a coupler fitting. I have saw a few where the pump and filter share a fitting thats what I would like to do what is the proper fitting? O-ring on both sides?