Originally Posted by BrotherTurtle
I did not change the supply line with the faucet. But I'm going to change the valve this weekend, so I can get a line also.

Today, I was talking about this with my wife and mentioned how strange it is that it's only one fixture. She told me the kids bathroom faucet and tub also have the air in them. I never go in there, so I didn't know about it. But when I checked it, there seems to be good pressure there.

So maybe it is the valve in the kitchen causing low pressure. And maybe the heater is causing the air in the line. But I don't understand how steam from the heater could get trapped in the line at tthe fixture. It seems the steam would condense and become water.

But I am going to drain the water heater again this weekend. Maybe that will help a little.


It sounds to me like you are narrowing it down...

A water tank with a bad air control valve can cause a similar problem but it would be on hot & cold, and you also clarified that you are on city water, so that takes this scenario out of the equation.

You said your meter is not running when all the water is off, so that eliminates a leak causing the problem as some have suggested.

That pretty much leaves an overheating hot water heater. It can affect one leg more than others based on the location of that leg and how much the water is used versus the other legs, but like I said in an earlier post it should affect all of them to some degree which you have now clarified that you are having the same issue in other locations. So it's beginning to make more sense as you give us more details.

PM me if you have an Ohm meter and need help troubleshooting the HW heater.

Last edited by westflgator; 05/02/18 07:04 AM.
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