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main water valve is not shutting completely

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main water valve is not shutting completely bent 02-17-2007
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Posted by Bobk207 on February 18, 2007, 8:16 pm
> And there is the matter of the (air-release thingy?) I painted over
>
>
>
>
>
> > Its like these ones (not being too specific) Its about 4 inches end to
> > end, notin' but stem on the 3rd hex, stem, end :
>
>
> >> Gate and globe valves (most likely for you to have):
> >> <http://www.watts.com/pro/_products_sub.asp?catId=64&parCat=228>
> >> When these get old, very often you can close them one last time, or not
> >> quite completely, but the stem breaks and you can never open it fully
> >> again. The only solution is replacement.
>
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I know you're doing your best to describe a situation unfamiliar to
you but it's really hard for us to tell what's going on (for sure)

Any chance of posting some pictures?

If the valve is upstream of the meter it is usually the water
utilities problem (at least in the US)

My guess is that the "thingy' with the knurled knob is a back flow
preventer...........

cheers
Bob


Posted by bent on February 18, 2007, 11:47 pm
Is it possible I dabbed over something I shouldn't have in this situation
which would prevent a complete shut-off?


(air-release thingy?) I painted over



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Posted by marson on February 18, 2007, 4:13 pm
> I cannot picture what you did, could you expand slightly please - how much
> was your leaking?
>
> I actually have to fix 2 lines (hot and cold) at the elbows, including maybe
> 4" either side. So I need 4 cuts. I am thinking I I could solder up some
> angles beforehand and I could use 5/8" compression fittings on the 4 ends,
> but don't know with all this water and I don't know if I can use a
> spin-cutter, &/or dremel, &/or 4-1/2" grinding wheel, &/or hack saw blade
> considering access. At a cup in less then a minute, that could quickly be a
> mess.
>
> I have never used a compression fitting, and do not know how smooth,
> straight the ends need to be (i.e. if cut shove a rasp in it, done is
> enough), nor if I can do a good job with water leaking through it at the
> time. Is there any reason to suspect this doesn't always go as planned?
>
> PS more info on original problem please. I know this situation isn't good.
>
>
> > I recently had the same problem at my own house. 90 year old shut off
> > valve wouldn't shut off. I "solved" the problem by adding a valve
> > just downstream of the water meter, so I could shut the water off
> > completely to my house. The water meter had a compression type
> > fitting, so it was possible to pull this off even with water leaking
> > out of it. The other solution is to shut off the water to your whole
> > house at the street. Your city water dept should be able to help you
> > find the valve. Then you need what is called a "street key" to turn
> > the valve closed (might have to have a licensed plumber to do this).
>
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My water comes up in the basement floor, then a valve, then a short
horizontal run to the meter, and then goes up from there. I unscrewed
it from the downstream end of the meter, let 'er leak for awhile,
while I installed a ball valve in the vertical section.


Posted by bent on February 18, 2007, 5:23 pm
Sounds like a very similar situation. If you were leaking at the time, I
can understand that if the ball valve you installed was compression fitted,
but why would the meter having pressure fittings be of value? It may not
matter, and if I were to do the same thing (I haven't done a pressure
fitting before and don't know what kind of edge and mainicuring would be
needed, or even if its a good seal anyways) I 'd just have to deal with the
leak (maybe a bucket in the time I'd finish, cut out a section of the
Vertical (3/4" is it), and coerce in a ball valve. Does this sound
familiar? In my ramblings I am just asssuming that any fitting with a hex
on the ends is a "pressure fitting", and similar in nature to the type I
have been considering for the actual repair I am trying to get to 50' of run
away. Before my meter however, everything seems to be pipe-thread fitted,
but with hex connectors, is some taper pressure fit I guess.

>
> My water comes up in the basement floor, then a valve, then a short
> horizontal run to the meter, and then goes up from there. I unscrewed
> it from the downstream end of the meter, let 'er leak for awhile,
> while I installed a ball valve in the vertical section.
>



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Posted by Bill on February 18, 2007, 2:28 pm
If you are just shutting off water to fix a leaky faucet or whatever, you
should be able to shut the water off as much as you can and still fix the
faucet. Another trick is to turn on all other water faucets while fixing the
leaky faucet.

If you need to have the water completely shut off for one reason or another,
then...

Fix the valve if you know how.

If you can't fix the valve, replace it if you know how.

If you can't do the above, call a plumber.



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