I replaced two old style Sayco valve stems with new of same stems in a
tub/shower and the water pressure is weaker on the hot water side.
Turning it full on doesn't increase the pressure, whereas the cold
water side increases in pressure as the valve is opened. The cold
full on is much stronger than the hot full on. There are no leaks, on
the outside of the wall anyway.
This tub has always been used just as a shower and I hadn't really
noticed what it was like with the water selected to exit the tub spout
before, so I don't know how the current situation compares to the what
it was doing before.
Should I be concerned about the difference in the pressure?
Hot water pipes, especially if there is a water softener that's not kept in
service, tend to plug up faster than the cold water pipes. It's not an
unusual situation. The blockage is probably right up close to the water
heater or water softener if there is one. It's just the imipurities in the
water collecting around joints, especially faucet controls and ells.
My best guess, anyway IME. We bought a home in Chgo that had that problem
with all the faucets, so rather than do flow rates into buckets & all that,
I just replumbed all the runs, from the street to the sinks, toilets, etc..
We still had great water flow 17 years later when we sold it and moved.
No need to be very concerned as long as you can get along with it. It'll
continue to get slower and slower for years until yuo get to the point you
feel it needs to be fixed.
Steel pipes are worse than copper is worse than plastic. Well water is
worse than city water as a rule, not always.
Your comment about pipes getting clogged made me get out one of the
few tools I use comfortably, the flashlight. Found there was a build
up of what I assume were calcium deposits in the seat (?), so I
gingerly loosened it with a screwdriver, turned on the water to try to
blow it out of there and voila, seemingly normal flow.
Thanks for the ideas.
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