I just ran new copper lines for a small sink, including a water heater.
When I turned on the water a small amount came out of the faucet's cold
tap, under pressure, then no more came. I took off the faucet's filter
before I turned on the water. If I turn off the water, then turn it back
on, the same thing happens.
I checked the filter screen in the pressure regulator and it's clean. Is
there something going on internally in the PR that could be causing this?
As far as I know, there isn't any blockage in the copper lines.
There's nothing else in the system except PR, WH and sink. Oh, there are
taps for a washing machine, but no washing machine.
What's going on?
Most any time I have disturbed a line, and cut it, or reinstalled another
valve or whatever, I get crud out of it. Sometimes blue scale, sometimes
white, but always get it. IF you have any way to flush the line when it is
open, even if you have to shut the water off at the street, do it.
Otherwise, the "stuff" can shoot anywhere in the system, and an incredibly
small amount can get stuck in even those water flow restrictors in the
shower, and surely in any faucet tip screen. You definitely got something
stuck somewhere, and I can't see it from here. I'd just start breaking
lines here and there and flushing them in a logical manner until you get the
crud. Check the pressure regulator, too. I know that may be hard, as it
may be hardlined in and not removable. Maybe take a force of water and try
blasting it in there through a small tube.
Isn't home repair fun?
On 4/3/2012 2:56 PM, email@example.com wrote:
Tend to agree altho would like to know more about what was actually done
It may be coincidental, but pressure regulators _can_ fail (I know, you
didn't ask but I'll tell the story anyway.. :) ) A day or two after the
youngest daughter was born after having been in the new house only a few
months, we have no water. To compound matters, the pressure regulator
is not to be found inside the house anywhere or even at the meter
opening and the builder wasn't present at the installation and doesn't
even remember who the plumber was. To add even more joy, it is raining
steadily for two days and no sign of letting up. In order to get water,
I cobbled up a bypass w/ a garden hose from the meter to the outside
hydrant on that side of the house while starting to dig to find the
obstruction. The regulator was buried inline in the trench about 5 ft
from the meter for some absolutely unknown reason and it was the culprit
having failed shut. Needless to say, it was relocated into a more
no matter how many times you turned the water on and off.
I think this is most likely. It's a case of "it was working when I took it
out, and now doesn't when I put it back. There was a period of several
months between the first and the 2nd event, and it is 20-25 years old now
so maybe that's the best reason. If it did fail, I can take it apart to
see if I can repair it for future use.
Do you have any stories of pressure regulators you'd like to share?
I checked the PR and it's installed correctly, with the IN where it should
be and the OUT, not surprisingly, where it should be.
matter how many times you turned the water on and off.
This is a good point. I'm thinking there's something internal to the PR
that is hinky. The next thing is to take it out of the system and see if
the water flows normally, though at a higher pressure.
I should note that this line, with the PR is only for a small sink, along
with a water heater. It comes off of the main line, but it has a separate
I did reuse the old PR when I did the work, but I cleaned scale off of the
screen filter inside the PR, and checked it to see if debris was present,
and there wasn't any.
Hate to spend the bux for a new one, so might try to take this one apart.
Are there repair kits for the internal bits of a PR?
Home repair is fun, and entertaining. I'm surprised I have to spend money
on other entertainment.
No check valves in the lines (I ran them myself). Unless the PR has some
form of check valve built in and it's failed. I did check the IN and OUT
of the PR and it's installed correctly.
Hmmm. Maybe I should double check: Yep, it's ok.
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