In most Canadian cities we could drink out of our toilets. Doesn’t sound too appealing, but we could if the toilet bowl had been thoroughly sanitized. The same water that comes out of our taps is used to flush our toilets. In a world of increasingly scarce fresh water does this make even an ounce of sense?
I remember the first time I was told there is no new water. All the water on Earth is the same water that was here since the earth was formed about 4.6 billion years ago. This seemed impossible to believe. Water is always shape shifting: ice bergs, snow, hail, rain, rivers, lakes, oceans, glaciers, fog, mist, frost, ground water, tap water. But it is always the same water! The same water has been cycling for 4.6 billion years. But it is not in the same condition it was even fifty years ago. In Canada at any given time, there are usually 1000 boil water advisories in effect. Safe drinking water is essential to life and we are using it to flush our toilets!
There is an alternative. It is called grey water recycling. Grey water is defined as wastewater generated from sinks, showers and baths, which can be recycled on-site for uses such as toilet flushing, landscape irrigation and constructed wetlands. Grey water often includes discharge from laundry, dishwashers and kitchen sinks. In July 2012, Bruce Nagy wrote the following in Plumbing and HVAC, The Voice of Canada’s Mechanical Industry.
It is probably wise to be skeptical about the next big thing. But sometimes it is just common sense; like the coming move toward more grey water recycling, especially in cities……… Whichever systems are used, there should be plenty of commercial and residential grey water and rainwater business available to contractors in the coming years. One could even say it’s the next big thing!
The Research and Innovation Centre at the University of Regina uses a grey water recycling system that is part of the research work of Dr. Stephanie Young. With the guidance of Dr. Young, the design for Prairie Spruce Commons includes plumbing infrastructure for grey water recycling. We plan to work with the City of Regina to seek approval to be a multi-residence grey water research site.
Our Prairie Spruce Commons Community is excited and eager to be a leader in environmental innovation in Regina. Are you the type of person that is passionate about sustainability issues and wants to be part of the solution? If so, we’re looking for more early adopters to join us on the quest to Green Regina.