What waste pipe is this?

[Flashster]

I've an old cottage with a waste pipe coming out of kitchen wall to drain, that I need to add to (too difficult to replace at the moment), but I can't yet take it apart to find its internal diameter.

It seems to be 34/35mm OD, and I think its been there coming out of kitchen wall since the 70's possibly early 80's.

Would this be 32mm push fit waste pipe?

 

[Madrab]

Nope - solvent weld ABS 32mm or 11/4" (ID) is 36mm OD.

 

[Flashster]

What the heck is it then, and how to add to it? Isn't Domestic Waste Pipe Push fit (with rubber ring seal) about that diameter?

 

[Flashster]

Just found a part number on one of the fittings. So it is 1 1/4 " - presumably rubber seal push fit.
Is this type/size still available or can it interchange with modern available sizes?
Just need to extend it with an elbow of some sort.

Many thanks

 

[Stuckinarut]

Just found a part number on one of the fittings. So it is 1 1/4 " - presumably rubber seal push fit.
Is this type/size still available or can it interchange with modern available sizes?
Just need to extend it with an elbow of some sort.

Many thanks

Fitting looks like solvent weld imo

 

[Flashster]

It seems to have a rubber seal. Either way, any way to temporarily attach to this pipe? (I need to divert it for a few days from drain). I can cut into it, but need to attach an extension pipe to it.

 

[Madrab]

Apologies - I'm getting mixed up with the 40mm and 32mm push fit - yes the 32mm push fit (PB) would be around 35mm OD - the 40mm pushfit is 40.3mm OD.

 

[Flashster]

Thanks. Yes it looks like the pushfit stuff. Have you any clever idea's how I can run a long (like 10m) extension to divert this waste pipe temporarily?
I need a long flexible pipe that clamps onto the 35mm OD pipe, but not sure what would do the job.

 

[Rodders53]

Touring caravan 28.5mm flexi hose is the same ID as 32mm push-fit plastic pipe... It fits inside the couplers but may not be 100% water tight (in my practical experience of the two)...
Some self-amalgamating tape stretched and wrapped around the join of the two should sort that.

We used rigid push-fits and supports to get better drainage cf the flex stuff.

https://towsure.com/collections/caravan-water-waste-hose/products/waste-hose is an example. Many other suppliers out there.

Otherwise just use lengths of pipe and joiners, bends and elbows not forgetting the need for some fall.

 

[polesapart]

https://www.screwfix.com/p/floplast-wc07-universal-compression-waste-straight-coupler-white-32mm-x-32mm/15490

or elbow

 

[Flashster]

Touring caravan 28.5mm flexi hose is the same ID as 32mm push-fit plastic pipe... It fits inside the couplers but may not be 100% water tight (in my practical experience of the two)...
Some self-amalgamating tape stretched and wrapped around the join of the two should sort that.

We used rigid push-fits and supports to get better drainage cf the flex stuff.

https://towsure.com/collections/caravan-water-waste-hose/products/waste-hose is an example. Many other suppliers out there.

Otherwise just use lengths of pipe and joiners, bends and elbows not forgetting the need for some fall.

Thanks so much for this information. Do you know if the pipe is ok to have outside (sun/frost etc) in your experience?
What sort of fall did you find it needed, especially it being corrugated on the inside?

 

[Rodders53]

It's flexible and full bore -- supplied and used by many thousands of touring caravans and (some) motorhomes invariably outside and in all weathers. Often just short lengths from the drainage outlets into a mobile waste, grey water tank...
'Serviced pitches' have electricity, water and drains at a nearby point on the pitch so a longer length is used. Many just leave it on the ground and empty / flush through when moving to another location.

It is not especially robust if abused. Easily cut with a Stanley knife or similar. Very flexible.

Fall more or less the same as 32mm rigid... but the steeper the better would be my aim. As I stated I used rigid pipe for serviced, with short flexis to turn an odd angle and down into the waste grid.

I assumed this was a short term need... weeks rather than many months.