Interesting story, Sue. Others also suggested I look for leaks
(actually we couldn't duplicate your actual event because there are
virtually no dissolved salts in Sydney water). Found no leaks. Checked
that the readings on the meter were correctly read and they were.
Australian Consumers' Association said they had nothing on file. On my
calculations it is as if we went away for two days and left a tap full
on - which we didn't. Hope it remains a once-off mystery.

On Fri, 13 Aug 2004 00:19:14 GMT, "Sue"
wrote:

Not quite Sydney but with regard to leaky pipes. We live in Karratha WA so
have to water year round. Recently we were changed from the Millstream
(high calcium deposit) water supply to the Harding Dam which has a brand
new, state of the art filtration system. Yippee no more white calcium
marks everywhere.

Get to the point :-)

All of our reticulation (solenoids - I believe they are called) started
leaking badly, not to mention the main (poly) pipe joins running into the
house!!! Something to do with the deposits washing out I think. Anyway,
fortunately we noticed one leak and then a second and decided to get digging
and do a full inspection. Our water bill will be astronomical now but
imagine if we hadn't noticed!!! So do check for leaks - we thought there
couldn't be anything wrong with our 18 month old system.

Rambled a bit sorry -
Sue - Karratha WA.