cistern overflowing

stevewhite22b · 24 Aug 2011

Hi

I have a coupled wc with a Macdee 40100 siphon. All well untell a day or so ago when the water overflowed into the overflow tube and down the pan. I've turned the water off, drained it and started again. It works for one flush then overflows again. Help anyone ?

Steve

xr4x4 · 24 Aug 2011

replace or adjust the inlet valve.

leakydave · 24 Aug 2011

It's probably filling too much. Adjust the float valve to the indicated water level.

stevewhite22b · 24 Aug 2011

I've adjusted the float with the threaded bar at the side, and I've raised the level of the overflow outlet. No change. Returned everything to the original settings, and it's still overflowing. Could something be jamming the inlet open regardless of the float ?

Steve

xr4x4 · 24 Aug 2011

no, you need a new valve.

Charnwood · 24 Aug 2011

Is it overflowing or is it letting by? It could be that the washer in the flush valve (for that is what a 40100 is, not a syphon) needs replacing.

Dealt with recently. See here

stevewhite22b · 24 Aug 2011

Thanks. Do you know if it has to be this make or are there others that would fit ?

stevewhite22b · 24 Aug 2011

That's a pic of my valve then. It's definitely overflowing. I can see the water come up and then flood the overflow hole and down into the pan.

xr4x4 · 24 Aug 2011

i had one of these EXCATLY the same the other day.

Same fault, no matter how much i fiddled about with the inlet valve, didnt cure it.

ended up fitting a new inlet valve.

also, as on that other thread, if the water is leaking down the pan but the water isnt reaching the overflow, the seal on the flush mechanism isnt sealing.

you can turn the seal around and this works also...!!!

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cistern overflowing

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