11.   The head is designed to avoid over-irrigating, which wastes water and can cause leaching of fertilizer or other chemicals into underground water supplies.

12.   The major disadvantage to RO units is that they waste water.

13.   The steady drips waste water.

14.   Unfortunately, the backwashing operation wastes water.

15.   We try not to waste water.

16.   By using the atlas, irrigation systems can be fine-tuned so water is not wasted.

17.   Do you know what happens to waste water flushed out of toilets and drains?

18.   Flood irrigation wastes water.

19.   Not only was valuable water wasted, the pressure was so great that it damaged the adjacent drain and my brick garden wall twice.

20.   People in Qunu cannot waste water.