08/01/2023
People say that using greywater is a great way to give your garden the H2O it needs while still following water restrictions.
So why not make it a part of your home's plumbing?
Well...in BC, plumbing and sewage by-laws complicate things.
(As a refresher, greywater is used household water from baths, showers, or laundry and kitchen activities. It's different from blackwater, which can include toxic or human waste.)
It's worth talking about because, as we get used to water restrictions every summer, more people are looking into installing plumbing systems that let them use mostly-clean household water for their lawns without physically carrying it outside.
Is a system like that allowed? It depends on where you live.
On Vancouver Island, for example, it's allowed as long as your greywater irrigation system is approved by the local health authority and installed by an authorized contractor.
Here in Vancouver, though, the answer is "no". As of the latest revision of the city's plumbing by-laws, you still can't use a greywater irrigation system with your lawn or garden, especially if you're growing food.
That might change in the future, but for now, your best bet is to install a system for collecting and storing rainwater during the wetter months.
Systems like that *are* allowed for lawn care, and the right one can provide you with enough water for your lawn until the rainy season comes around again.