For a homeowner, the sewer backflow preventer usually will be above the ground, so you or your plumber can easily access it.

This is why more and more water jurisdictions are opting to install backflow preventers above ground in a backflow enclosure. So Safe-T-Cover is asking designers and engineers across the country ...

To see if you have a backflow preventer on your irrigation system, look for an in-ground rectangle box with a green cover — they’re by the water meter or perimeter of the house. If you have a ...

To find out if your irrigation system has a backflow prevention device look for an in-ground, green-lidded rectangular ... call the utility’s backflow line mentioned above.