On Mon, 11 Jul 2005 20:16:42 +0100,it is alleged that Colin Wilson
spake thusly in uk.d-i-y:


Incidentally, the other reply mentions water levels - in my case (sounded
very much like yours) it was the plastic membrane that had fallen apart -
as you pull the handle it lifts a rigid inverted "T" shaped piece of
plastic, and above that within the main body of the siphon is, for want
of a better word, a piece of cheap sh!t flexible plastic, which initially
"blocks" the main body of the tank to move the water over the top of the
siphon, then flaps out of the way once the flush starts.

This was also my thought with regard to the post elsewhere in this
thread that it 'feels like pulling nothing'. The flap valve is usually
thick PVC or polyethylene sheet and years of exposure to mains water
seems to rot it (chlorine maybe?).

I did a successful repair on one some years back using heavy guage
poly sheet (actually part of a building sand bag!).

It lasted several years until the toilet was replaced.

--
The most exciting phrase to hear in science,
the one that heralds new discoveries, is not "Eureka!",
but "That's funny..."
- Isaac Asimov