Greywater is water that has been used for bathing and showering, washing clothes, and hand washing from lavatories. Greywater accounts for approximately 35% of indoor household water use. Since it is relatively clean, it can be reused for toilet flushing and irrigation with minimal filtration.
Approximately 30-40% of household treated fresh water usage can be reused as Greywater for Toilet Flushing resulting in significant savings on your water bill. Another benefit is that since your household will be using water regularly for daily activities, your supply of Greywater for irrigation purposes is more consistent than rainfall and can easily be used to keep your concrete slab consistently moist and avoid cracking. In some locations, the reuse of Greywater for lawn irrigation is exempt from seasonal municipal water restrictions, allowing you to keep your lawn green when your neighbors are under limitations.
- The building codes vary widely by state and municipality. In many localities,Greywater reuse is no permitted or strongly discouraged by the authorities, but there has been a clear trend in recent years to increase the permitting of Greywater reuse and we expect this trend to accelerate as fresh water supplies become more difficult to secure. We closely follow all regulatory developments and work with municipal authorities to develop more appropriate plumbing codes so we are well positioned to advise you on the propriety of Greywater reuse in your home