I seem to have lost some piece during the winter that connects the Krystal Clear SWG to the pump. My flow sensor conduit, which is the T-shaped PVC fitting that goes between the pump and SWG and also allows the flow sensor to screw in through the top has two different sized ends, one large end and one standard size end that fits all my hoses. The large end seems to be the exact size of 2" PVC fittings at home depot and Lowes so I'm thinking I probably need something that's 2-1/4 or 2-1/2" but I really dont know where to look and I haven't been able to come up with a solution. Any suggestions?