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Posted by mm on March 30, 2007, 11:04 pm
wrote:
>I shut off the main water to repair a toilet, and the shutoff is a 20-year
>old green Grinnell 3/4" ball valve. When I put the water back on, I opened
>up the ball valve very gradually. I noticed that nut that holds the handle
>in place got wet from turning the valve. After the valve was opened all the
>way the slight leak at the nut seemed to stop, but it bothers me that it
>happened at all. This is the valve immediately after the water meter. The
>one before the water meter (same exact valve) had done that once too, so I
>leave that one open all the time.
>
>Is it normal for a ball valve to drip as a result of using it and then stop
>dripping? If not, then do you recommend I get any work done on the main
>shutoff valves if the nuts holding the handle get wet as a result turning
>them?
If it's too much to tolerate, wrap a towel or a thinner piece of cloth
around the valve, and route the cloth to a bucket.
If that doesn't give you enought time to finish the work you are
doing, you may be able to siphon the water from the bucket to sump or
to a drain in the middle of the basement. You'll have to put the
bucket on a brick or maybe something taller for the siphon to work.
When I did this, I had a leaking pipe at a sink, and the bucket was
pretty high, and I siphoned the water into the toilet.
The siphon speed was self regulating (even though I didn't do anything
to accomplish that, except perhaps accidentally choose the right
height for the bucket.) so that once I started it, it ran for 5 days
with no attention from anyone. When the water in the bucket was high,
the siphon worked faster, and when it was low, it worked slower, so
the siphon never emptied and the bucket never overflowed. Not even
close.
And we continued to use the sink the whole time.
I used fairly large diameter tubing, that we had to buy for chem
class, iirc. I know that for the last 6 inches, I used a large
diameter plastic straw, such as are still used for milk shakes. Its
outside diameter was the same as the tubing's inside diameter.
> Does this mean that usage of the ball valve is deteriorating some
>packing in the valve? I had thought ball valves weren't supposed to leak
>the way old crank-style valves do. Would tightening the nut that holds
I don't know about this stuff.
>the handle in place stop a leak if it didn't stop on it's own? Without
>removing the handle, (which I'm afraid to do) I don't see any other nut
>except the nut that holds the handle in place.
>
>Thanks,
>
>J.
>
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