[commodor47]

Something else to consider: what is the relative humidity in your area? Condensation can occur on cold, metallic surfaces when the relative humidity is higher than normal. I've experienced a slight amount of water below our hot water heater and also thought it was coming from the cold water input. A closer inspection revealed a small hole at the bottom of the hot water heater Styrofoam jacket which had indications of a water leak - due to condensation between the water heater and the jacket.

Dick