Installations range from indoor to outdoor and “below grade” or pit installations. Where space is an issue, systems can require a vertical installation. Indoor installations must address the issue of discharge.
Of the five standard types of backflow preventers, three spill water, two at start-up and one a basic function of the assembly.
Outdoor installations face the potential of vandalism, soil corrosion, and in some climates, freezing temperatures. An outdoor installation may typically require some type of covering.