Backflow preventer installation costs between $105 and $1,400, with the average property owner spending $325 per backflow preventer. Backflow preventers are essential in many commercial and some ...

Backflow valves are 85 per cent effective in eliminating sewer backup, according to Galen Heinrichs, stormwater utility manager with the City of Saskatoon.Moreover, in that 15 per cent of instances in ...