07-11-2010, 04:44 AM
I converted my dual control water shower valves to a single control. It is a Moen (moe63170)rough in 4 port with stops. The problem is, after I have hooked up all the connections, I get no water flow out of tub spout or the shower arm. I have played around with the stops by opening and closing them, still nothing. There is a large port with a screw head on on it next the cold port which I think is the balancing spool piece. Should I remove this spool piece to see if anything fell into the valve body? I have installed the valve in the right configuration but I am missing something but don't know what. Could there be an air pocket in the valve?