Question about toilet cistern overflow...?

Might be an internal overflow which runs down inside the loo?

Si

Ha - well I never - learn something every day.... it is........ just tried it...

Thanks

Simon

The top of the syphon unit is lower than the total height, or should be, than the water can get to in the cistern. The water just rises up inside the syphon and runs down the loo bowl. Designed when high rise flats where first brought into use in the USofA, I think, using the easiest way to remove the need for extra pipework to take away any overflow problems.

I noticed something similar on our bungalow in Northern Ireland. The cack-handed plumber had run the pipe into the wall cavity of an internal wall and just stopped it there !

Far from the worst bodge committed on that nightmare too.

Our downstairs loo has a little float, that if the water level gets too high it pulls a sleeve up that opens a hole in the siphon letting overflow water out. I know all about it as during the first snagging visit my brother (a buildings inspector) overflowed all the loo tanks (and loft tank) and the downstairs one just overflowed onto the carpet as the floating thing had been incorrectly fitted. Didn't need to overflow the loft tanks as the builders had failed to connect the overflow pipes anyway, just leaving them laying nice and flat across the insulation.