What a waste. Calling all plumbing types.....

[slowmotion]

I have an ancient soil pipe that I messed about with a while ago. The messing went pretty well but I have a problem with a disturbed waste pipes that feeds into it.

It's common knowledge that the rubber seals on waste fittings go belly up and embrittle and leak after 15 years or so. The good news is that the weeping water from the seals evaporates really slowly and leaves a crust of mineral deposits ( not unlike the hard stuff in your kettle), and this plugs the leaks.........until they get disturbed.

I've done a lot of disturbing in the last couple of weeks and this bit is leaking. If I flex the pipe to stuff in a new seal or whatever, a pipe somewhere else will start getting all arsey. I'll probably be chasing leaks all over my home. Is there a wrap tape, silicone mastic, bitumen gunk, or whatever that you would recommend? I'm veering towards rubbing off the mineral deposits with a pan scourer, drying, cleaning it thoroughly with IPA, and wiping it all over with a huge amount of sanitary silicone, but it's a bodge .

What would you advise? Here's some music.....
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View: https://www.youtube.com/watch?v=ZmopROxBnBU
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And thanks.

Edit: On the right is a vertical (nomimal) 100mm UPVC soil pipe. It has a clamp-on boss to take a push fit (32mm?) waste pipe. The rubber seal on the boss is clearly fubared.

 

[classic33]

http://www.screwfix.com/p/self-amalgamating-rubber-tape-black-19mm-x-10m/87717
Self-Amalgamating Rubber Tape

 

[slowmotion]

http://www.screwfix.com/p/self-amalgamating-rubber-tape-black-19mm-x-10m/87717
Self-Amalgamating Rubber Tape

Thanks. The problem with tapes is that if you can't get the reel round the whole shebang, you can't wrap it tightly. Mind you, trying to smear gloop round the back of a workpiece that you can't see isn't much better either!

 

[Levo-Lon]

Pump it full of sanitary mastic..the other joints look like the glued in type so they wont fail..

 

[rich p]

Do they still make sylglas? Messy, gunky stuff but it was effective when I used it back in the dark ages.

 

[classic33]

Thanks. The problem with tapes is that if you can't get the reel round the whole shebang, you can't wrap it tightly. Mind you, trying to smear gloop round the back of a workpiece that you can't see isn't much better either!

Peel off, keeping it clean, a length to enable you to take the roll round before applying the tape. This allows you to take the roll through "flat" as opposed to trying to run the toll round every time.

 

[classic33]

Do they still make sylglas? Messy, gunky stuff but it was effective when I used it back in the dark ages.

Still there, but not recommended for indoor use any more.

 

[slowmotion]

Do they still make sylglas? Messy, gunky stuff but it was effective when I used it back in the dark ages.

Yeah Rich, but is it still working???????????

 

[slowmotion]

Still there, but not recommended for indoor use any more.

That's the sort of stuff I like the sound of! Is it banned and only available from dodgy outlets....

 

[classic33]

That's the sort of stuff I like the sound of! Is it banned and only available from dodgy outlets....

If you consider Wickes a "dodgy outlet".

 

[slowmotion]

If you consider Wickes a "dodgy outlet".

Hmmmm. Wickes saps my spirit. It's what I imagine Dignitas must feel like when I enter the door.

 

[gbb]

Sylglas is almost certailnly the same as Denso tape, a gunky messy sticky tape that is extremely good at sealing just such leaks.
The benefit is you can cut it into strips, wrap, pass the end through and then multi layer it in strips then squeeze and mould it , it will all amalgamate together.
Ive used it on occasions over 30 years, its never faiked me, even with fast dripping leaks.
Indoors ?...I suspect it might dry out if it was warm.
That original elbow doesnt look right as someone has already said, but its a classic area where I'd use denso tape.
The alternative, remove the old pipe, cut back, insert a new section and most importantly, renew the seal. I once tried removing one of those saddle type bosses, helluva job in my case, it was glued on.

 

[screenman]

Is it not worth the extra bit of effort to do the job correctly?

 

[rich p]

Yeah Rich, but is it still working???????????

Christ alone knows, Slomo, I only ever used it on other people's houses!

 

[gbb]

Is it not worth the extra bit of effort to do the job correctly?

Logic says yes.
I had a similar problem at work a month or so ago.
If, the big if, you can get exactly the same saddle, you can rob the seal out of that and use it in the old pipe. The existing elbow looks wrong, but it may be the right one, clean it all up and rebuild.
Replacing the whole saddle may be a problem, mine was glued on and required a hammer, chisel and bloomin ages of sweating and swearing to get it off.

TBF, ive used Denso tape many a time and its never let me down.