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Old 10-24-2018, 01:35 PM   #1
mavrick8019
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2004 Montana water heater bi pass location

Can somebody direct me where i can find the bi pass valve for the water heater. I have been all over it and I can not locate it. Another question if i have anti freeze go through it while the pump is on will that cause a problem.

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Old 10-24-2018, 02:57 PM   #2
JRTJH
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The bypass valve is located on the back of the water heater (the inside, center part of the heater) and is attached to the cold water inlet port. That is the lower inlet to the water heater. You'll probably have issues locating it as it's often a 1/4 turn valve handle positioned on the inside of the fitting, so you've got to be "standing on your head, left foot forward, tongue in right cheek and pretending to be cross-eyed to see it".... Here's a picture of a couple of water heaters so you can get an idea of what you're looking for. In the second photo the valve is located at the lower fitting on the end of the blue PEX tubing. Well hidden unless you know what you're looking for......
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Old 10-24-2018, 05:03 PM   #3
sourdough
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You ask if "you have antifreeze go through it while the pump is on will that cause a problem?"

With the system in bypass the answer is no - it bypasses the hot water heater and just sends the antifreeze right to the hot water lines. If you run antifreeze with the pump and it is not in bypass it will fill the hot water heater - something I would avoid.
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Old 10-25-2018, 08:37 AM   #4
mavrick8019
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water heater bi-pass

thank you for all the help and information.
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