I have a gas heater and it has an automatic feeder on it. It drips water from the pressure release volve. The volve was replaced but problem still exists. Also I had a new feeder volve placed on it and still the leak is there, although my heater runs fine. Why the leak? I have a digital thermastat and at night I turn the heat to where I want it and press the hold button so that the house will maintain that temperature. I think that's when I get the most drip. HELP!