Mulch controls weeds which lessens competition for water and protects against soil-borne diseases that stress plants and increase water demand. By insulating roots in winter and summer, mulch can ensure healthy plants, which reduces water requirements. Maintenance Keep plants healthy, but do not encourage water-demanding new growth during drought periods. Avoid plant stress by mowing properly, by careful pruning of shrubs and by early control of weeds and pests. While collecting rain can be easy, problems with insects, sediments, and other potential contaminants must be addressed.
Many local jurisdictions have regulations for rainwater harvesting.
In a typical suburban home, graywater can comprise nearly 50 percent of the water headed down the drain. Graywater can be collected from lavatories, showers and baths, and clothes washers. Typically, graywater systems avoid water from kitchens that contains food particles and grease. Although graywater is not contaminated with sewage, it does contain organic materials and other chemicals that can pose a health threat if not handled properly. It offers some dos and don'ts on using graywater.