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Old 02-06-2014, 12:46 PM   #1
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New tub installed now to check the plumbing....and...no success.


I installed my new tub after re doing some drainage and went to test it out today to find that the cold water (On the right in the pic) works great. The hot water (Left) however does not. I unhooked the hose and there is hot water to there. but when i hook it back up and turn the knob with pliers no water comes out. Do i need to replace this whole valve or am i doing something stupid here and over looking something? Thanks

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Old 02-06-2014, 03:19 PM   #2
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New tub installed now to check the plumbing....and...no success.


No way would I install a new tub and not also replace the old control valve.
100% sure you have to hot on the left?
Pictures pretty fuzzy, are those galvanized couplings? If so get rid of them.

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Old 02-06-2014, 03:34 PM   #3
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New tub installed now to check the plumbing....and...no success.


I am 100% sure i have hot water TO the control valve. Nothing beyond that. Yes those are Galvanized coupling What should I replace them with? Plastic? Brass? or will they come with the new valve.
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Old 02-06-2014, 03:57 PM   #4
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New tub installed now to check the plumbing....and...no success.


If that's Pex I'd just use a 1/2 MPT X 1/2 Pex elbow so the tubing would not have to make that big curve.
It's possible while working on the plumbing some trash got knocked loose in the lines and messed up your anti scald valve inside the control.
Very common.
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Old 02-06-2014, 04:26 PM   #5
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New tub installed now to check the plumbing....and...no success.


Ok thanks for the input.

Its not pex its actually a hose like one that would feed a faucet with a shut off. its fed from copper to those galvanized couplings. I'm not sure if that's how it usually is installed but i wouldn't be surprised if its a cob job. the guy who owned the place before me was a horrible DIYer and i run into stuff all the time that is for lack of a better term cobbed
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Old 02-06-2014, 07:02 PM   #6
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New tub installed now to check the plumbing....and...no success.


No way I would even consider putting flex hoses in a wall.

On your hot cold issue make sure both hot and cold are on. Since its a moen they go from cold to hot by turning the center stem counter clockwise. Not right and left.

If it is hot then cold turn the center stem 180 degrees.

If that doesn't work and you did the above replace the cartridge.
1-800-BUY-MOEN

Lifetime warranty. Also hard pipe that junk in the wall.


Last edited by Ghostmaker; 02-06-2014 at 07:05 PM.
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