freezing water lines
Hi. I have a 10-year-old colonial. When the outside temp gets in the single digits for a few days in a row, if we don't start dripping the cold water faucets in the upstairs master bath, we get freezing. Thank goodness we have not experienced burst pipes yet. The hot and cold lines run up from the basement about 4 feet inside the outer wall, but they arrive, I think, under our whirlpool tub. The tub has a tile deck. What I think is happening is the area beneath the tub gets no heat circulation and gets very cold. Any thoughts on the best way to rectify? I do have an access panel in the BR, but it is on the opposite end of the tub from the water supply.