In all modern homes today, the water supply comes in via a meter and the water supply company will charge based on the volume of water used. In addition, they will also make a sewerage charge based on volume of water used. Minimising usage is therefore an important environmental and economic step to take.
Depending on where you live in the UK, a water softener may be advisable. In East Anglia they are pretty much essential because of the water hardness.
A typical water softener can be quite large and needs to be designed into a new home, to allow space and access.
Rain Water HarvestingRain water harvesting is one way to dramatically reduce the amount of water you use in your home. This natural source of clean water can be used in washine machines and toilets.
Careful consideration should be given to the appliances you use in your home. Some are much more water efficient than others.