I think that "an old home (1902)" equals corrosion -- in the pipes and in
the valves.

Maybe one of the pipes is so corroded that it is virtually completely
clogged. Same for a valve.

Or, maybe there is a valve turned off somewhere that is hard to locate.

Seems like you should be able to turn on the hot water at one or two sources
near the problem sinks (such as a nearby tub) and then trace where the pipes
are hot by feeling them. My guess is that you'll find a point where a hot
water pipe branches off and should be hot but isn't. The corrosion clog or
corroded valve is probably somewhere nearby.

"daniel hudson" hudson[dot]daniel4[at]gmail[dot]com wrote in message
...
Hey there.
So we have an old home (1902) that is 3 stories. We currently have a
tenant in our ground floor apartment. She just
informed me that she is unable to get the hot water to come out of the
bathroom sink tap.
She could let it run and run and it will not get hot at the sink tap.
Her kitchen sink tap works fine.
Our kitchen sink tap works fine.
Our 3rd floor bathroom sink gets hot pretty quickly but our 2nd floor
bathroom sink tap has the same problem that out tenant
does...
Our 2nd floor bathroom sink hot water has NEVER gotten hot (unless I take
a shower in there beforehand) and we've just learned to live with it,
since
our primary bathroom is on the 3rd floor...
Anyway, this is a new problem ( we think) for our ground floor bathroom
sink as our previous two tenants never mentioned it.

We have a tank (blech) water heater 80 gal on the ground level of the
house, so her bathroom is actually the closest to the source of hot water.


We can't figure this out.

Any ideas oh plumbing gifted folks out there? Thanks!

--
daniel hudson