Passive Freeze Protection: Ice-Loc®
There is an interesting new product out that helps prevent pipes from rupturing when they freeze. As I mentioned in the beginning of this tutorial, water expands when it freezes and the pressure exerted by the expanding ice is what causes the pipe to burst.
Ice-Loc® is a special foam tube that compresses when ice expands, creating space in the pipe to receive the new water volume, thereby helping to protect the pipe from bursting. It can be used in problem pipe locations.
Ice-Loc® can be found here at iceloc.com.