Toilet overflow

[Brianb]

I need an alternative to the standard toilet over flow that vents to outside the building. As the outside wall is about to become the inside wall when the conservatory is built. I remember seeing a see through pipe that joined on to the soil pipe once upon a time but can't find one or is it my memory playing tricks again? Other than that any ideas how not to flood the conservatory if the ball c*ck sticks?

Regards Brian

[EricP]

A new cistern will vent to the toilet bowl, not through the wall.

[Paul Saunders]

Have a look at this page:

It's a combined overflow and flapper valve, not a syphon. I've got a similar one in my toilet and it works better than a syphon, giving a better flush.

[Mitchum]

Whatever you get, you need to get something that acts as a tell-tale. If you don't notice the cistern overflowing then it could get worse to the point when you only notice it when you have water puring across the floor or thru' the ceiling.

[shazzbat]

I've seen one where the overflow went into the flush pipe, so the toilet would be permanently flushing(dribbling) if there was an overflow. It was in an office block, I don't know if it's available for domestic use. I imagine it wouldn't be too difficult to run the overflow into the flush pipe on a DIY basis, are fittings available?

Steve