Internal cistern overflow to drain

[The Medway Handyman]

After how long?

Still cheap to replace.

[PeterC]

About 20 years.

Oh yes, no problem there.

Also had an inlet valve that was so fast I had to have 4li of full bottles in the cistern to keep the flushed amount down to 8 - 9li! It was surprising that the siphon didn't run continuously. With some judiscious lubrication, the flush could be operated easily with the tip of the little finger.

I changed to a dual flush, push-button cistern and cut about 100li/week from consumption.

[Dave Liquorice]

That sounds like a dual flush version rather than single flush. But yes far more complicated and less reliable.

[Andy Champ]

You've reminded me of the one I saw the other day. High mounted cistern, set so the overflow comes out of the front of the tank and drops straight into the pan from a great height.

Or presumably onto the head of any user...

Andy