i have a 3 story little house with 2 bathrooms, one on the 2nd floor,
one on the top floor. the hot water comes from a 40 gallon gas hot-
water-heater in the basement. i cannot even get enough hot water to
fill a bath on the 3rd floor. after about 6 inches the water goes
cold. However, when i go downstairs to the kitchen on the first floor,
there seems to be plenty of hot water. There doesn't seem to be any
sediment at the bottom of the tub so i don' think the pipes are
blocked but i guess i could be wrong. can anyone point me in the right
This will require some detective work. There's a cross-connection
somewhere between the downstairs and upstairs that's drawing water from
some cold pipe into the hot water pipes of the upstairs. What's unusual
is that it's not happening downstairs, but stranger things have happened.
First of all, go to your washing machine, and shut off the cold water
to the WM where the hoses connect. Then see if the problem is solved.
If it's not, then go to the upstairs sink, and shut off the cold
water at the shutoff valve underneath. Then see if the prolem in the
shower is solved.
Do the same test to each fixture you can (even the downstairs fixtures).
The problem might also be in the water heater, but if it were, you'd
see it happening downstairs. Are you certain it's not happening
Also, did this problem suddenly appear?
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