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Old 11-15-2011, 12:31 PM   #1
Join Date: Nov 2010
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Mixer valve bypassing?

I have a new water heater, and some times I get very hot water, mostly though I get luke warm water. I can only assume that the mixer valve is letting cold water past. The Tank is set to 125*. From the attached diagram, does anyone have any thoughts? The mixer valve does not look very fun to remove, and replace.


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Old 11-15-2011, 03:03 PM   #2
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Location: Flintstone, GA 30725 Zone 7
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Mixer valve bypassing?

Is that some kind of a recirculating apparatus you got on top of that heater to keep hot water circulating all the time so you have instant warm water?

I have not seen a set up like this on a water heater install before. What I have seen is one installed on the line under your bathroom sink.


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Old 11-15-2011, 03:28 PM   #3
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Mixer valve bypassing?

Sorry that is actually to in-floor heating for the lower living room.

Update: I shut of the valves to the in-floor heating yesterday so this in not a factor. You can see the one valve just before the pump, and the other on the upper line at the far left. In the morning I had a cool shower for the first 5 minutes, then it began to warm to a luke warm temperature.

Last edited by carboncopy; 11-16-2011 at 07:26 AM.
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