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Drummer · 01-03-2016, 02:15 PM

I have a strange problem that recently started in my house. If the hot water tank runs for a long time (such as after a shower)... By the time the hot water tank turns off and is recovered, the COLD water pipes throughout my house have a large amount of pressure built up in the line. If I run any tap on cold it will be super high pressure for 2 or 3 seconds then go back to normal. I'm worried that the built up pressure could cause a line to rupture.

Been in this house for a number of years and the problem has been around for only a few months.

The hot water tank is a traditional style natural gas tank, about 10 years old.
About 6 months ago I replaced the taps in the house (new sinks) and added a water line to the fridge (spliced it off the kitchen sink cold water line). I don't think the renos have caused this issue but it's the weirdest thing. Anyone have any ideas?

01-03-2016, 02:15 PM	#1
Drummer Crash and Bang Winger Join Date: Dec 2013 Exp:	Plumbing question (water pressure) I have a strange problem that recently started in my house. If the hot water tank runs for a long time (such as after a shower)... By the time the hot water tank turns off and is recovered, the COLD water pipes throughout my house have a large amount of pressure built up in the line. If I run any tap on cold it will be super high pressure for 2 or 3 seconds then go back to normal. I'm worried that the built up pressure could cause a line to rupture. Been in this house for a number of years and the problem has been around for only a few months. The hot water tank is a traditional style natural gas tank, about 10 years old. About 6 months ago I replaced the taps in the house (new sinks) and added a water line to the fridge (spliced it off the kitchen sink cold water line). I don't think the renos have caused this issue but it's the weirdest thing. Anyone have any ideas?