Backflow is the reverse flow of water from a property back into the drinking water supply.
Backflow prevention devices (BPD) protect water quality from contamination. Contaminated water incidents may have serious or even fatal consequences for water consumers. By using BPD the unwanted water flow does not enter the drinking water supply, protecting water consumers from drinking or using contaminated water.
There may be any number of contamination sources within a property. Backflow prevention provides a barrier, keeping contaminated water separate from the drinking water supply.
Examples of potential sources of contamination include:
- fire hose reels (FHR).
- irrigation systems.
- swimming pools.
- vehicle maintenance pits.
- ornamental ponds.
- air conditioning towers.
- vehicle/bin washing bays.
- chemical injection areas.
- commercial and manufacturing processes.