I just turned the water back on in an unoccupied house. All faucets worked fine except an upstairs bathtub. At first, the water flowed fine, but when I tried to turn it off, the cold water would not turn off completely. Then it would not turn back on to full force. The hot water turned off, but will not turn back on at all. I had to turn the water back off in the whole house to stop the flow from the bathtub. Any easy fix to this problem. Thanks.