Example:

Start reading:	1234, 567.8 litres
Final reading:	1234, 574.8 litres
Total usage:	7.0 litres x 6 = 42 litres/hour 42 x 24 = 1,008 litres/day 1,008 x 90 = 90,720 litres/quarterly billing period (approx).

 

Other Meters - six point extended test

 

Make sure that you know what all the dials on the water meter measure (see above).

Allocate a time when water will not be used, eg when the house is unoccupied whilst people are at work/ overnight.

 

Ensure that all taps within the house and garden (not including the stop-tap) are turned-off, and that all water appliances, including toilets, dishwashers and washing machines, are not being used.

 

To determine the extent of the leak, take a start reading, wait 12 hours, then take a final reading. Don't forget to read all the dials.

 

Subtract the start reading from the final reading to arrive at the number of litres used. Be sure to write your answer in litres and not kilolitres.

 

Divide by the number of hours to determine the number of litres lost per hour.

If a leak is detected arrange for a plumber to locate and repair the leak.

 

Example:

 

Start reading:          1234, 567.8 litres

Final reading:          1234, 667.8 litres

100.0 litres / 12 hours = 8.3 litres/hour

Total usage:            8.3 x 24 = 200 litres/day

200 x 90 = 18,000 litres/quarterly billing period (approx).