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Posted by tim1198 on October 1, 2006, 7:47 am
Your incoming cold supply is virtually unlimited compared to the
shower. I don't think your diagnosis is correct. Try the same test on
a sink, and if that same problem doesn't occur, it's the shower
faucet...
good luck
brentrobertson@hotmail.com wrote:
> Help! - My tenant is calling me with a real stickler of a plumbing
> problem and need help diagnosing and fixing / solving this one.
>
> DAY1-I get a call that the Hot/Cold water surges in the 2nd floor
> bathroom (duplex/upper flat) shower. The Tenant downstairs is out of
> state so that person can't be flushing the toliet or anything like that
>
> (rules out the downstairs plumbing activity).
>
>
> I inspect the case: I go to the shower in question, turn on the water
> to a steady warm condition, and then go to the bathroom sink and turn
> on the cold, feel the bath water (remains the same). I go to the
> kitchen and turn on the cold (bath remains the same), turn on the hot,
> (bath water remains the same)???
>
>
> I go to the basement to check things out with the water heater. The
> water heater is leaking bad from the bottom and is SHOT. I replace the
> water heater with a brand new 50gal/water heater.
>
>
> 3-4weeks pass, I think - replacing the broke water heater must of fixed
>
> that problem.
>
>
> Well I get a call from the 2nd Floor Tenant again today - " The water
> is surging hot/cold (I don't get the exact behavior but get the gist of
>
> the problem) still inside the shower" I believe the hot water gets too
> hot and burns the showeree or it gets too cold one or the other.
>
>
> I lived in that apartment for 9mon to 1 year and never experienced this
>
> "surging shower water problem." Can't be the person down stairs either.
>
>
>
> The only thing I can think of is that this scenario is happening:
>
> Guy takes shower, turns on hot, after 5 min the H20 Heater demands cold
> water to fill the tank, this cold water depletes this guy's "cold"
> water in the shower and thereby causes a surge in water temperature?"
> Do you think that could happen or has that ever happend to anyone?
>
>
> I need some help diagnosing and fixing this thing for good. Any advice
> and insights much appreciated.
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