Prevent backflow

Water that flows opposite to its normal direction is called backflow, a problem that can accidentally contaminate drinking water in your home and, possibly, the entire public water system. Backflow conditions are potentially dangerous, but preventable.

Common household hazards

• Chemical spray applicators: Garden hoses carrying potable water can have a chemical spray applicator attached to dilute lawn and garden chemicals like pesticides, herbicides, and fertilizers. These can be toxic or even fatal if ingested. Should backflow occur while using this type of a product, it may contaminate the public water supply.
• Submerged hoses: Hoses submerged in buckets or containers like pools or ponds present a common hazard in the event of a drop in water pressure. This is due to the possibility of chemicals and micro-biological contaminants being present in those containers.
• Underground lawn irrigation systems: The puddles of water that often surround the bases of ground level sprinkler heads may contain micro-biological contaminants as well as chemicals from fertilizers and herbicides. These sprinkler heads are not designed to prevent backflow in the event of a drop in water pressure.

Eliminating the chance of backflow

Commercial and multi-residential property owners

Plumbing codes have always prohibited any connection that could cause potable and non-potable water to mix.. Numerous applicable standards are in place to ensure backflow prevention devices meet acceptable standards; they include CSA, AWWA, ASSE, ANSI, & IAPMO.