Plumbing advice

[chunkolini]

I have a comedy leak in my house.
it is a 110 year old terrace in Swansea.
In the outside loo there is a plastic waste pipe coming down from upstairs and going through the floor.
The waste pipe is about 35mm from a wall on one aide and up against a wall at 90 degrees to the first wall
Between wall 1 and the waste pipe is a lead water pipe from the mains. A tight fit.
Lead pipe has sprung a tiny leak, literally pinhole sized. So a very small spray of water is coming out. Press a finger on and it pretty much stops.
Cunningly the leak is level with the middle of the waste pipe making it innacessible.
the lead pipe cant be accessed from the other side because the waste pipe is in the way. Outside the loo the pipe is under concrete. it might be possible to access it by lifting a slab or two.
it may have been doing this for ages so no flooding issues. yet.

Long term I need to replace the section of pipe by the look of it. the loo can be taken out as I never use it.
Is there a short term fix/bodge?
If I turn the stopcock (outside in the street) off is there some sort of cement or 'Stuff' that can be applied to the pipe to stem the leak? There is no room to put a wrap around the pipe.

Any advice appreciated.

 

[brightspark]

jubily clip and a piece of neoprene over the pinhole or screw a stainless steel self tapper in either a fibre washer on or ptfe. ive done both and its pulled me out of the sh ...t

 

[Kayos]

Jam a small pointy piece of wood in, when it gets wet it swells and seals the hole

Found many a lead pipe sealed like this, including one with a 100 year old King George penny under it (the pipe, not the repair)

 

[Woody.v8]

If it were a temporary repair, i would peen it together with a small punch.

 

[slim_boy_fat]

Can you remove enough of the plaster/brickwork behind the area site to give enough leeway to get a wrap round there, maybe using a chisel bit on a hammer drill?

 

[chunkolini]

I have just added a photo from my phone, the leaky pipe is the multiply painted white bit in the foreground, the waste pipe is also multiply painyed on the right. The leak is on top of the horizontal pipe and level with the middle of the waste pipe.
Brightspark, that might just be possible if I remove some of the multiple layers of paint off wall and pipes.
There is a lot of paint in this house.

 

[Woody.v8]

If you could find the room around the pipe there are lead jointing couplers or turn the water off and drain the pipe if possible and solder it up.

 

[Justme]

Use a wide cable tie & bit of rubber.

 

[chunkolini]

Just had a poke around, you can just squeeze a knife between the pipe and the wall after scraping off the rendering, but no space between the two pipes.. the wall is stone and seems very hard.
No way to get in and peen it over only about 150mm vertical space above it.
it seems designed to be a challenge.
is there some sort of chemical paste eg chemical metal that might do the job?
I know that water normally wins in any battle. But I dont fancy spending any money I dont need to at the moment.

 

[Woody.v8]

Can't you bosh a wood screw in it, Just as a bodge mind

 

[ms08]

Small self taper as above would be my favorite.

 

[cumbriasteve]

Over the years I have used this stuff to hold a multitude of things together and seal a few leaks, great stuff if applied correctly.

http://www.ebay.co.uk/itm/JB-WELD-W...290521?hash=item3cba661719:g:kdQAAOSwrklU~yPF

 

[Cobbler]

If you can clean it off well, JB Weld might be the answer. It's got me out of a few holes in the past, it's better than Araldite by far & stays waterproof. Not sure if it would stick to lead, but I'd think so. There's a crack in our china flushbox that I discovered when it's was a year old, I sealed it with it & it's still ok 12 years later, on the bottom of the box underwater all the time.

EDIT Beaten to it by Cumbriasteve

 

[the snooper]

if you can clean it just drain it and solder the solder melts at a lower temp then lead

 

[chunkolini]

Just had another look, no room to get above it.
I can stop it by pressing a finger down on top of the hole
Sadly the little Dutch boy who did that died of exposure*, so that is not an option.
Below the leaky pipe is the cistern for outside lavvy. So very litttle access. The leak is a little further along the pipe just out of shot.
Jubilee clip? doubtful with the access issues.
Brilliantly designed problem.

*True but not often reported. We had family friends who lived in the town.

 

[gaz1]

if you dont need it shut the valve off though someone else might be on that line as are with old buildings if your lucky no one else will be

as goes for outside toilet comes in handy sometimes

you wont seal it with a blowlamp as too much water in there the old plumbers siglass wont do it as its in a wrap form however melted tar might do it

 

[slim_boy_fat]

If you can reach it with your finger [as above] make up a pad of Milliput which is a two-part putty you mash together, sets like concrete and should fix it. It can also be sanded, drilled, tapped etc, very handy stuff.

If you want to PM me your details, I can send you some.

 

[chunkolini]

That sounds just the ticket.
I was thinking something that can be applied by hand.
So what? wire brush the area, wall and both pipes then reach in and build up a pad of the stuff with the water turned off?
I pass by a plumbers supplier on my way to work, I will ask them if they have any, if not I will be happy to take you up on the offer.
or what about chemical metal? I think I have some of that in my box of tack at work.

 

[the snooper]

That sounds just the ticket.
I was thinking something that can be applied by hand.
So what? wire brush the area, wall and both pipes then reach in and build up a pad of the stuff with the water turned off?
I pass by a plumbers supplier on my way to work, I will ask them if they have any, if not I will be happy to take you up on the offer.
or what about chemical metal? I think I have some of that in my box of tack at work.

I reckon tiger seal would do it, its strong stuff and I haven't found anything it wont stick to yet

 

[Cobbler]

If you can reach it with your finger [as above] make up a pad of Milliput which is a two-part putty you mash together, sets like concrete and should fix it. It can also be sanded, drilled, tapped etc, very handy stuff.

If you want to PM me your details, I can send you some.

I've used milliput for repairs on things, I reckon that would be a good shout, it's an epoxy putty. I bought it from an ironmongers. Only thing is when it gets old it won't set properly. Doesn't give a shelf life on the pack though.