Assumptions behind the water usage estimates
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| Shower | litres per minute |
|---|
| Standard | 8 |
| Power | 15 |
| Electric | 6 |
| Low flow | 6 |
| Bath | litres per bath |
|---|
| Standard | 90 |
| Large | 110 |
| Shallow | 60 |
| Toilet | litres per flush |
|---|
| Very old | 13 |
| Standard | 9 |
| Dual flush | 5 |
Each person uses basin taps for 2.0 minutes each day
| Basin taps | litres per minute |
|---|
| standard | 6 |
| low flow | 4 |
Your household runs kitchen taps for 0.5 minutes each day.
Plus each time you wash up by hand you use 8 litres
and each day's cooking requires 3 litres.
| Kitchen taps | litres per minute |
|---|
| standard | 12 |
| low flow | 8 |
The washing machine takes 40 litres for a full load. Dishwashers are more variable:
| Dishwasher | litres per cycle |
|---|
| old (> 5 years) | 18 |
| new (<= 5 years) | 10 |
A hose uses 20 litres per
minute, a sprinkler 6 (like a shower). A bucket is 10
litres and a watering can 8 litres.
If you are using mains water in the garden, you do
this for half the year.
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