Hello, I'm a do it yourself remodeler. I bought a house which was built in 2000 and it had been unoccupied for several months. A moen posi-temp shower valve wouldn't put out any cold water so I bought a new one and put it in. At first I still didn't get any cold water but suddenly it started coming thru....I don't think I have full flow but it's pretty good. The problem is it won't fully shut off and I get a small stream. The old valve was hard to get out and the new one was hard to push in. Could I have fouled up the rubber things on the sides of the valve? Should I pull it out again? Any suggestions will be appreciated. Thanks