More About Does One Dripping Faucet Really Prevent Frozen Pipes?
But can one dripping faucet really save the day? If it's the right one. The dripping faucet should be as far away from the water source as possible so the water will flow through the entire length of the system. If you aren't sure where the incoming water source is located, setting any faucet to drip will help. A common misconception is that the drip prevents water from freezing because it stays in motion when it's running through the pipes. Although this helps, the truth is that at extreme temperatures water can freeze even while it is flowing. The real reason a dripping faucet can help prevent pipes from bursting is that the constant drio
relieves pressure that is building up in the pipes between the ice blockage and the faucet, and helps to prevent them from bursting when the pipes begin to thaw....more: Click for Details