On 25 Apr, 10:38, "Tim" nothing@here wrote:
Martin Pentreath wrote:
http://timesonline.typepad.com/envir...lush-toil.html

Surely that should read, "Not paying attention to an overflowing cistern
when you're on a water meter is silly"? Hardly a disaster.

Nothing to do with dual flush or even internal overflows (although arguably,
a small leak down the back of the pan is less noticeable).

Perhaps replacing the float operated valve with hand-operated valve on
the intake of the cistern would help? If the default state is closed,
then an empty cistern implies a leak (or someone forgot to fill it
from the last time).

Sid