I have a slow drip from my Rudd Water Heater through the Temp and Pressure Relief Value. The heater is a Power Vent model PVP75FW We are on well water and the water contains minerals which have damaged other appliances. We have installed a CSI filter recently. So, being a relief valve, I'm wondering if it is "Relieving" itself or if I may have a damaged valve. And just out of curiosity, how many others type "value" for "valve". I seem to do it all the time. dgp By "slow leak" I mean perhaps just under a gallon over 30 hours or so.