Example
Water Cost Savings
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Toilet Cistern
Reduce toilet cistern capacity from 10.5 to 9.3 litres.
Assuming used 5 times a day on average gives a saving of £2.68
every 6 months for no cost to implement
Dripping Tap
Repairing a leaking tap with a measured loss of 6 litres per day
saves £1.90 every 6 months for the cost of a new tap washer
at 38p.
Rainwater Storage
Installing a 250 litre barrel complete with down pipe trap and piping
costs £33. Assuming the barrel is emptied around 4 times a
year means that although there is a water cost saving of around
£8 a year i.e. the payback time is in
excess of 4 years.
Turning Off The Tap While Cleaning Your Teeth
Assuming there are 2 people in the house who clean their
teeth twice a day this will save around 20 litres a day giving a
cost saving of £6.36 every 6 months.
Don't Leave The Hosepipe Running When Not In Use
A hosepipe uses around 15 litres a minute so leaving one running
unused an average of 5 minutes each week wastes around £3.20
every 6 months.
The figures for these examples were calculated using EnCalcL
, a water saving calculator which is free to download for personal
use. Examples assume: Water Volume Cost of 70.00 pence per cubic
metre, Sewerage Volume Cost of 115.48 pence per cubic metre and
a Sewerage Volume Allowance of 10.0 percent.
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