In article ,
says...
G wrote:
SNIP

Ok, so I found the leak I referenced in my previous
post...but the problem is, it only occurs when I run a
hose INTO the plumbing vent pipe, the flashing & rubber
gasket AROUND the pipe are in perfect condition.

So my question now is....everywhere I read states that a
plumbing vent pipe should NOT need a cap. Given that
mine leaks when it rains and/or I run a hose into it,
can I get away with just capping the pipe (obviously not
restricting the air flow)? Or do I have much bigger
problems than that? It does not drip when we take
showers or use water in the house, only when it rains...

Tnx!

You can try a simple way to prevent rain entering
by adding a 180 deg "Return Bend" to the vent terminal:
http://castlewholesalers.com/searchr...0Return%20Bend

If rain water really is wicking out of a joint, it
could be sealed with more PVC cement or even RTV.
It's not critical since it's not under pressure.
I don't think I'd attempt taking the fittings apart
as you'll likely end up with a much bigger project...

Jim


Thanks, I was going to go to Home Depot to see if they
had something like that. I looked down the vent pipe in
the attic, can only see about 2 feet down though, but it
looks like the morons who renovated the bathroom (I just
bought the place a few weeks ago), seemed to have driven
at least one nail (because I can see it), and I'm
asuming a few more, into the vent pipe because the
bathroom sheetrock is right next to the vent pipe. The
schmucks must have thought it was a stud or something,
who knows...So I'm sure that the vent pipe must be
leaking around a puncture wound somewhere in the house
and I'm not planning on ripping apart my house to find
out where (I wish I had one of those snake light
camera's like they use at the pyramids).

Since it doesn't seem to drip/leak when I use my
plumbing fixtures, I'm going to assume that the leak
starts somewhere ABOVE all the joint areas and hopefully
a nice long-term remedy will be that 180 deg "Return
Bend" as you suggest. I guess the worst thing is that
I'll have a tiny bit of air escaping from the vent pipe
into the house, but I assume it won't be enough to cause
problems with smells & things like that.....

Sound about right on all this?