Sitting on the couch watching the Giants v. 49ers, I heard a hissing noise coming from the bathroom—and not the kind that comes from battling cats. When I went to look, there was hot water and steam spraying out of the hot water supply line coming out of our water heater. We’ve got a copper line coming out of the heater into a T-fitting that supplies hot water to a heat exchanger that circulates glycol on the other side of the exchanger to keep our water and septic lines thawed. After that is a Shark Bite connector holding the main PEX hot water line to the house. The leak was coming from just above the connector, underneath some red electrical tape I had always assumed was to indicate “hot,” but may have been there to disguise an injury to the tubing. I don’t know how else to explain PEX suddenly springing a leak, and the contractor that did the original work has a very bad reputation around Fairbanks for doing much less than the “Best.”
At the Fair this summer we stopped at the booth advertising Rescue Tape and bought a couple rolls. It's a silicone “tape” that bonds with itself when stretched, and can supposedly handle very high pressures and temperatures. I’m very glad we did. I wrapped a foot-long section around the leak, and for now, it’s holding. If you don’t have a roll of this stuff around, you may want to get one for a similar emergency.