The previous owners of the house installed 2 different cartridges in the tub. Both need to be replaced, probably the diverter also.
The local building store can match the cartridges if I bring them down. This means shutting off the water; cold & hot. There are no visible shut-off values & I do not want to punch a hole to locate them. I can shut-off the cold at the main value coming into the house. However, the hot water tank (gas)does not have a shut-off value on the pipe leaving the tank, & I do not feel like watching 40 gal of hot water go down the drain. Suggestions?

 

If you shut off the water supply to the house (cold water valve), there will be no pressure available to push the hot water out of the hot water tank. Some drainage will occur but typically not the whole tank.

Even if it should completely drain for some unknown reason, the cost of electrically heating up a tank of water is minimal (in the range of cents).

 

I agree with Richard,my only sugestion is while you have the main shut down you might want to install a shut off valve at the water heater,if you had to shut off the hot water in a emergency what would you do?

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Dave
L.I.Handyman

 

Siimply turn the water off at the main, remove valves, take to store, replace, reinstall. You got it. Good Luck!

 

I think he said there was no valve on the pipe LEAVING the water heater which kind sounds like there is one on the line coming in which is as it should be.

quote:<HR>Originally posted by LI handyman:
I agree with Richard,my only sugestion is while you have the main shut down you might want to install a shut off valve at the water heater,if you had to shut off the hot water in a emergency what would you do?
<HR>

 

Your current dilema, could be a god send. While you are at your building supply store, pick up as many supply shut-offs,resonably, as you can use. Spend part of a day and install them where you can conviniently access. Kitchen, bathrooms under the vanity, laundry tubs, etc. Idealy, should you have a dilema, you won't have to shut the entire house off. You will find that most problems happen after the building supply stores are closed.