What is greywater recycling primarily used for?

Greywater recycling is primarily used for irrigation purposes because greywater, which is water that has been used for domestic tasks such as bathing, laundry, and dishwashing, typically contains fewer contaminants compared to blackwater (water from toilets). This makes greywater suitable for certain non-potable uses, including irrigation of landscapes and gardens. By recycling greywater for irrigation, it helps to conserve freshwater resources, reduces wastewater disposal, and maintains soil moisture.

While greywater can potentially be treated and used for other purposes, such as industrial processes or filtration systems, those uses often require more advanced treatment methods and are not the primary application of greywater recycling. Greywater is not generally deemed safe for drinking water supply without extensive treatment, as it may still contain pathogens and contaminants that could pose health risks. Thus, irrigating plants and landscapes emerges as the most effective and commonly accepted use for recycled greywater.