Change direction of kitchen sink waste connection.

[Sam Burrows]

Hi,
I need some advice on the best way to trim this pipe and make a new connection. See photos

1614973979567652728988918164331

• Sam Burrows
• 5 Mar 2021

16149739480391495695415063939701

• Sam Burrows
• 5 Mar 2021

We're in a flat on the first floor so can't access the outside. The kitchen sink waste pipe goes out through the wall approx 600mm off the ground. I'm moving the sink to left of this so need to remove this connection/ turn it 180. Is there anyway to remove this right angle piece while leaving enough of the waste pipe to connect to? It looks to be permanently affixed. Or does some thing like this exist for a 40mm pipe to make an internal connection?!
https://www.jewson.co.uk/p/flexseal-icon-pushfit-coupling-100mm-black-DRIC100P

Any and all advice welcome.
Thanks,
Sam

 

[Hugh Jaleak]

That is Solvent Weld waste you have, nothing you can do will remove or loosen that elbow, the only solution is to replace the required section. I really wouldnt want to be putting more bends on it to turn it 180°. What is the situation outside?

 

[oldbutnotdead]

So what are you trying to do? And what is that white lashup for?

 

[Sam Burrows]

That is Solvent Weld waste you have, nothing you can do will remove or loosen that elbow, the only solution is to replace the required section. I really wouldnt want to be putting more bends on it to turn it 180°. What is the situation outside?

Hi thanks,
Yea I thought it might be solvent welded. How would I go about replacing it with and elbow going in the other direction?

The situation outside is that it slopes down the side of the building about 1.5 storeys up in the air. I have no access to that outside space.

 

[Sam Burrows]

So what are you trying to do? And what is that white lashup for?

I'm trying to replace the elbow with an elbow that goes left instead of right. The white mashup is just from the condensate pipe from the boiler and will be re attached once the waste pipe goes left

 

[dal5band]

It maybe possible to surgically (!!) remove the elbow without damaging the pipe inside it. Very careful hacksaw along the collar and peel off bits of the collar. Do not force so as not to crack the pipe. Then file and sand until the new elbow goes over the pipe. It all depends on how well the original joint was made.

 

[Sam Burrows]

It maybe possible to surgically (!!) remove the elbow without damaging the pipe inside it. Very careful hacksaw along the collar and peel off bits of the collar. Do not force so as not to crack the pipe. Then file and sand until the new elbow goes over the pipe. It all depends on how well the original joint was made.

Thanks, yea looks like that might be my only hope. My other thought was to trim the elbow back to the welded joint and if it looks like it won't come off easily but a new elbow up to it and join them with a flexi connector like this over the top of both pieces. https://www.screwfix.com/p/floplast...Rfj97kgJswegrzPXm7EaApn8EALw_wcB&gclsrc=aw.ds

 

[Sonic70]

The condensate pipe is surely wrong going uphill which makes it a trap.

 

[Sam Burrows]

The condensate pipe is surely wrong going uphill which makes it a trap.

You can ignore the white pipe this photo is just post strip out of the kitchen and the pipe is hanging loose. It will be replaced with a slope down from the boiler into the new waste pipe once I figure out how to make the waste pipe run from the left rather than the right as it does now.

 

[Sonic70]

My mistake, looks like its going into left wall until you zoom in.

 

[Sonic70]

I've got some scrap solvent weld joints from my bathroom refurb last summer, i will see if i can get them apart safely tomorrow and let you know.

 

[oldbutnotdead]

A Dremel type tool with wee cutting discs might be best for the surgery and the sanding off of bits. You sure you can't access the outside...ladders can be borrowed (or hired)

 

[denso13]

We're in a flat on the first floor so can't access the outside.

If there really is no way to access the outside then you could cut enough space around the pipe from the inside to get your hands in. You could then cut the bend off and extend the existing as required.

Then patch up the wall as required.

 

[Sam Burrows]

A Dremel type tool with wee cutting discs might be best for the surgery and the sanding off of bits. You sure you can't access the outside...ladders can be borrowed (or hired)

Thanks, yep careful use of a Dremel sounds like my best bet for getting it off.

Unfortunately to get to that wall I have to go through some one else flat and into their garden with a 2 storey ladder, and the flat is currently unoccupied as it is being sold so no one to ask to let me in. Also the garden is surrounded by other properties so no way to get to it without going through the ground floor flat.
This is the out side, some odd decisions were made when they converted this property into 2 flats back in the 70s

Outside

• Sam Burrows
• 6 Mar 2021

 

[oldbutnotdead]

Give the estate agents a ring- urgent maintenance, pipe is failing through the wall, may cause damage etc etc. Thats if the surgery fails (avoid flexi coupler if you can, they're prone to blocking)