Overflow pipe question.

[WelshMan]

The pipework for an overflow on a close coupled toilet (not internal overflow) is usually solvent welded.

I was just wondering the connection that goes through the actual cistern and is connected externally of the cistern is simply a pipe inserted into this connection and tightened up with a plastic nut.

Is the pipe that is inserted into the connection solvent welded to provide a water tight seal or simply pushed in and tightened with the nut?.

 

[kevindgas]

either
there are compression and solvent versions of straight and 90 degree fittings

 

[kevplumb]

the nut and tail usually work like a compression fitting

 

[dextrous]

Untitled

• dextrous
• 5 Sep 2009
• 1

 

[kevplumb]

bit harsh

 

[dextrous]

bit harsh

Revenge is a dish best served cold ('S' plan my arse )

 

[kevplumb]

so how else do you pipe unvented ?

as far as the cylinder is concerned its just that a cylinder with an extra zone valve

the heating side to the cylinder is a variation of the s plan or s plan plus

and you can do it with a combi

 

[dextrous]

 

[WelshMan]

The fitting in all honesty doesnt look watertight too me, even with the plastic compression fitting i can still withdraw the pipe if tightened up as much as i can from the pipe. Probably be best to solvent weld the fitting then use the plastic compression nut to give a water tight seal.

 

[doitall]

A compression fitting won't take solvent weld, it's a different plastic.

 

[dextrous]

You can always put a few turns of PTFE around the pipe to widen it out and create a seal.

 

[Whitespirit66]

Just fully hand-tighten it. Never had to resort to PTFE. If you solvent weld it, how will you remone the cistern if you need to?

Get it tight, won't leak.