Going Grey: Is Reusing Grey Water Beneficial to Households?

Grey water is a type of untreated waste water. It makes up the biggest portionGardener watering flowers of waste water in a home, and households typically discard it on the assumption that it’s too dirty for reuse. Grey water, however, can still be useful even when it appears dirty. When households filter grey water, they can reuse it while minimising their water footprint at the same time.

Keep Plants Healthy

Naturalflow.co.nz, a waste water system provider in New Zealand, says that it is possible to reuse grey water for subsurface or surface irrigation, such as watering orchards, hedges, plantings and trees. During the dry season, households can irrigate using grey water to help non–edible plants survive. Aside from delivering the water that plants need, the trace elements and organic matter found in grey water can nourish them. Grey water, therefore, is great for keeping ornamental plants blooming, trees alive and lawns vibrant and lush.

Reduces Septic System Stress

Households who have a septic system may already be familiar with the typical problems associated with having one. Issues like clogged drains and backups could result in septic system failure or a total system collapse, for instance. Reusing grey water can ease the strains on a household’s septic system, cutting down the need for maintenance and extending the septic system’s overall longevity. 

Saves Money

While residual savings is evident due to the decreased need for septic system maintenance, households can find the biggest financial perk of reusing grey water in their water bill. When households use grey water for irrigation, they can calculate their long-term savings through a simple equation. The result represents the approximate savings a household will have each year should they swap out their use of fresh water with grey water.

Apart from conserving water, households can keep their plants healthy, reduce septic system stress and save money when they reuse grey water. There’s a limit to its usefulness, however. Although grey water is great for plants, they are not safe for consumption. Hence, households should take special precautions to keep children and pets from drinking it.