why is my unfinished shower wet
It seems like randomly(every 2 to 6 weeks) the faucet leeks(it turns on a little) and water was coming out the top of the pipe where the shower head was to be connected. If you open and close the handle it turns off. as a temporary solution I installed the shower arm so the water drips in the shower instead of behind the wall. I plan on contacting delta faucets.  If I installed the valve properly it must be faulty.