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Thread: Hot water issues

  1. #1

    Default Hot water issues

    This may not seem strange to you guys but to me it is. I cannot get hot water in my kitchen sink unless I first turn on the hot water in my shower. I have plenty of water pressure on the hot water side. I have flushed the water heater just to cover that. Any ideas?

  2. #2
    Plumber jimbo's Avatar
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    Is it that you get NO water at all, or you get water but it is not hot? If the latter, does it eventually get hot if you let it run a long time?

  3. #3
    Consultant cwhyu2's Avatar
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    Several things you could look for .check shut off under k/s.If it off and
    have single valve faucet it might byassing hot to cold and coming out
    the cold side of the k/s faucet.More info would help.

  4. #4

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    I have plenty of water pressure it just doesn't get hot unless I turn on the water in the shower first.

  5. #5

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    I have double valve faucet with two seperate water supplies under the sink.
    one hot and one cold.

  6. #6
    Consultant cwhyu2's Avatar
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    Is the shower valve single?

  7. #7

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    one thing, i have an expansion tank in line before the suply line gets to the water heater. It is warm and when I turn on the hot water I can put my hand on it and it doesn't feel anything is leaving it and also it doesn't cool off any. could it be stopped up and could that be the culprit?

  8. #8

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    the shower valve also is double.

  9. #9
    Consultant cwhyu2's Avatar
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    How old is the w/h?

  10. #10
    Licensed Grump GrumpyPlumber's Avatar
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    One VERY good question...you say you get no hot water at the KS faucet...are you getting ANY water on the hot side when the shower is off?
    "The biggest regrets we have in life are the chances we never took."

  11. #11

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    about a yr old give or take a little bit. It's a State Select 40 gal.

  12. #12
    Consultant cwhyu2's Avatar
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    Ok I thougt abuot long hard .You may have a broken off dip tube inside
    the w/h.It can cause cold to become warm.look up w/h and
    expansion tanks.This may help better under stand how they work.

  13. #13

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    yes I get water with good pressure on the hot side of the k/s when the shower is not on. It's like I have to prime it by turning the hot water on in the shower to make it get hot in the sink. Then it gets hot. I turn the shower off the water in the sink cools to luke-warm.

  14. #14

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    I will check although, the shower water stays hot, way longer than it has to. it is only in the kitchen sink that it either isn't getting hot or isn't staying hot without the hot side of the shower turned on.

  15. #15
    Licensed Grump GrumpyPlumber's Avatar
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    This sound slike you might have trouble at the shower valve.."path of least resistance" type trouble.
    If the shower valve is allowing cold to get by into the hot line and it's less distance, fewer offests or larger pipe..(a few other variables) the cold is possibley cross feeding into the hot side through the shower...when you open the shower it closes the cross connection...you might start by letting us know what type shopwer valve it is.
    If it has a balancing cartridge, that could be the trouble...cartridge might be ceased...partially of fully.
    "The biggest regrets we have in life are the chances we never took."

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