When washing dishes manually, fill one of the sinks (or another container) with water mixed with detergent. Then rinse, treated with a detergent, dishes in another sink under a small pressure of warm water.
Saving per person: up to 60 liters of water per day.
Use the dishwasher, if possible, at its full load.
Saving per person: up to 60 liters of water for each use.
Wash vegetables and fruits in a sink filled with water with the tap off.
Saving per person: up to 10 liters of water per day.
Do not use water to defrost meat products. You can unfreeze them, leaving them in the refrigerator for the night.
Saving per person: up to 10 liters of water per day.
In general, the reduction of water consumption by 4 times is quite a feasible task.