Certain waste water goes directly down the drain without any consideration. However there are two cases where waste water can be reused.
1. Whilst you steam your organic vegetables or cereals, half the minerals and nutrients of your food are found in the water. Drain your vegetables and cereals without recuperating the water from cooking them. Recuperate the juice in order to make a brew which you drink before or during your meal. Add a bit of salt to improve the taste if you find the drink too weak.
2. The second case concerns you if you own an aquarium. Whilst you change water, don’t throw it away but use it to water your plants. This water which is packed with organic particles will strengthen your plants and you can avoid using fertilizer.