Decision by City of Sarnia Ontario protects drinking water

a( href=https://www.sarnia.ca/living-here/water-wastewater/backflow-prevention-program/)sarnia.ca/living-here/water-wastewater/backflow-prevention-program/ “ What is a cross connection?

A cross-connection is “any actual or potential connection between a potable water system and any source of pollution or contamination” (CSA, 2011).

That is what this program is targating.. “..plan includes creating a Backflow Prevention Program and passing a Backflow Prevention By-Law to enforce the program”

https://www.youtube.com/watch?v=zztyd2Xb6i8 Sarnia document states. “cross-connection control, “Back Pressure”, “Back Siphonage” or Backflow Prevention, help to ensure our drinking water is protected.”