Flush Pipe Diameter Mystery

[Traveller 47]

I set out to replace a flush pipe on a back-to-the-wall toilet fitted professionally three yea4s ago. It had been cut too short and was leaking around the seal with the basin. Easy? Not so.

Visits to Screwfix, Wickes and other local stores all revealed flush pipes with an outside diameter of 38mm. My pipe is 38mm inside diameter and about 42 mm outside diameter.

What can I do?

 

[ShaunCorbs]

Both ends the same size or one end bigger ?

 

[Traveller 47]

Both ends the same.

 

[ShaunCorbs]

Do you have a picture of the existing flush pipe and connector ?

 

[Traveller 47]

OK, I owe you an apology. The two ends are different diameters - I measured the wrong pipe!

The cistern end has an inside diameter of 44mm and the toilet end has an internal diameter of 38 mm. Where do I get one of those?

Pic attached.

 

[ShaunCorbs]

2” flush pipe

You can make a rubber flush pipe seal work but it’s a stretch will get a link
[automerge]1738187431[/automerge]

Fluidmaster Internal Connector Flush Pipe | Wickes.co.uk

Fluidmaster Internal Connector Flush Pipe

www.wickes.co.uk

[automerge]1738187521[/automerge]
You can try these also

Hanforede 2 PCS Flush Pipe Connector Durable Rubber Sleeve Seal Flush Pipe Tube Flush Valve Seal for 48-50mm Flush Pipe 58-60mm Drain Pipe Seal Connector Toilet Inlet Flush Valve
https://amzn.eu/d/7hRbpcL