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Old 03-28-2019, 04:26 PM   #1
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Shower control sweet spot


I'm going to make a long story probably longer than it needs to be but here we go. About a year ago, maybe longer we replaced all the fixtures in a bathroom with Delta products in the sink and shower/tub. Relatively expensive ones as fixtures go. The one in the shower is the single lever type that you rotate to turn the water on and off and adjust the water temp. I had a pro do the work since I hate fooling with plumbing and an access had to be cut into the wall. Once installed though we discovered that there is a sweet spot on the faucet where water only flows in that one particular position. Well that's been over a year and we've just lived with it thinking we would get new fixtures again and just replace them. I never even repaired the wall where we cut it to access everything. Well a couple of days ago the water heater goes on the fritz so I get a new one installed and the plumber tells me that he just left it on the factory settings for water temp. So, you know "OK fine". Well the first morning I take a shower they could here me screaming down the block because the water is so much hotter. Seems the old one was either set much cooler or wasn't working properly that far back.
So here's my question, has anyone ever had that "sweet spot" problem and if so can it be fixed fairly easily. Or should I just use a different shower until I can get it replaced?
My scalded butt thanks everyone in advance.
BTW, the plumber that installed it tried to get it to work better but couldn't. Not sure if it can be fixed or he just didn't know how.
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Old 03-28-2019, 05:10 PM   #2
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Re: Shower control sweet spot


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Old 03-28-2019, 05:50 PM   #3
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Re: Shower control sweet spot


Not sure I understand your description of sweet spot. Are you suggesting that as you rotate the handle, you have no water until you reach a certain position?
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Old 03-29-2019, 07:12 AM   #4
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Re: Shower control sweet spot


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Originally Posted by Yodaman View Post
Not sure I understand your description of sweet spot. Are you suggesting that as you rotate the handle, you have no water until you reach a certain position?


exactly
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Old 03-29-2019, 07:59 AM   #5
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Re: Shower control sweet spot


My guess is the valve stem was installed 180 degrees out. Shut off the supply valves, remove the handle, and anti scald pieces. There could be a retainer clip or nut to remove. Mark the stem with a Sharpie dot on top of the handle. Pull it straight out rotate it 180 degrees and reinstall. The sharpie dot is just to insure it's 180 out when you reinstall.

You might also call Delta tech service to see if they agree with my assumption.




Water should start flowing slowly as soon as you start moving the handle out of the closed position. Delta makes universal valve bodies for various applications. Hopefully a mistake was not made with the housing and stem combination.
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