FYI Preparing for the harsh cold weather the next several days. Twico and JGS Advisors Insurance Grp, LLC

February 12, 2021

With a harsh cold front moving across Texas, Twico would like to share some helpful tips and resources that you can pass along to your clients in order to help protect their homes from an impending freeze. Please see the following Q&A section, along with the links below, to learn more about preventing frozen pipes and preparing your home for winter storms.

Q: My husband and I have been debating whether we could get away with just running the cold water. Is it important to run the hot, too?


A: Yes, in fact, if you contact plumbers who repair pipes following a freeze, they’re likely to say 70 percent or more of the pipes they repair are the hot water pipes. You have to understand the way pipes burst. If the pipe is surrounded by cold air, especially cold wind, it will start ice growth. The ice grows from the wall of the pipe inward until it creates a blockage, then ice grows along the length of the pipe. That growth along the length of the pipe acts like a piston that elevates the water pressure in the pipe. It’s the pressure that causes the rupture.


Q: So why does that mean hot water pipes are more likely to burst?


A: It’s the toilet. Often you have one line that feeds a bathroom: the tub, toilet, lavatory all coming off the same line. If you imagine pressure building up in the waterline, all it has to do is force the ball float to go down a little (in the toilet tank), allowing water to dribble into the tank, relieving the pressure on the cold water pipe (The hot water pipe doesn’t have that relief).


Q: Do you need to keep the water running in a pencil-thin stream? Or will just a drip work?


A: It doesn’t matter how fast the drip is. The slower the drip, the less water wasted. The rupture is due to pressure. If you have some kind of pressure relief (by leaving the faucet open), the (ice) piston can keep on pushing, but nothing will rupture.


Q: Should you still run the water if you’ve insulated your pipes?


A: An incomplete insulation job is probably worse than no insulation. If you’re using the foam tubes, you have to look very closely at what’s happening at the plumbing fittings, the elbow, or tee. Lots of times, people will put the tube on the straight section and leave the fittings exposed. You really want to protect the whole pipe and fittings.


Q: Our weather reports always talk about hard freezes and light freezes. When should you worry about your pipes?


A: It’s not just cold temperatures, but cold temperatures blowing on the pipe. The wind is the real kicker. Protecting against drafts is really the key.

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