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Old 12-14-2011, 08:54 PM   #1
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No hot water pressure


We moved into our house a year ago. We have never had hw pressure in any room. The hot water heater was from 1989 so we traded it out 2 months ago. This did not fix the problem. It does not matter where we try to draw hot water, it takes 3-5 mins to get hot. When we want to get a good temp for showering we turn the hot water on until hot then barely turn the cold water on. If the cold water is turned to high, we just get cold water without any hot.

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Old 12-14-2011, 09:03 PM   #2
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No hot water pressure


I'll bet that the gate valve is broken in the closed position---

Little pressure---or plenty of pressure but hot water runs out real fast and goes cold---

More details---picture of the piping to the heater will help.

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nank (12-14-2011)
Old 12-14-2011, 09:17 PM   #3
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No hot water pressure


If you turn on the hot water and get a very small flow...
And can turn on the drain valve on the new hot water heater and get a really good flow... (place bucket under it of course.)

Then the problem probably is that an old disintegrating water heater sent particles through the water lines and these particles have clogged your hot water valves and faucets.

Try disconnecting a sink connection on the hot water side. Turn the hot water valve off under the sink. Disconnect the flexible tube which goes from the valve to the faucet. Place the tube into a bucket. Turn on the valve. See if you get good flow.

If you do, then place the bucket under the still disconnected faucet. Turn on the hot and cold at the same time. Then place your hand over the spout. This causes cold water to go in one side and backwards out the hot side and into the bucket below.

This is called "back flushing". It will cause those particles to clear out of the hot side of the faucet.

Then reassemble the faucet and the hot should now work as good as the cold.

If that works, then back flush all the other faucets.

Note: If you do not get good flow from the valve in the wall, then the valve will need to be removed. Best that be done by a plumber if you are not experienced at doing this. Trying to remove those can break copper or plastic connections inside the wall if you are not careful!
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Old 12-15-2011, 08:19 PM   #4
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No hot water pressure


trace hot water line from tank through basement till it turns to go up see if any other valves are on system...see if someone may have installed a regulator on hot side in basement.....seen this before....let us know what you find..
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