What do you know about backflow (preventers)?

A backflow preventer might be one of the most important parts of a Fire Sprinkler System that you have never heard of. A backflow preventer is a device that is installed on the main incoming water supply into a building that only allows flow in one direction. It ensures that water does not flow back into the public water supply!

Backflows prevent potential contaminants located in sprinkler systems from flowing back into the water supply we all drink from (a buildings domestic water system.) They are crucial to ensuring that the water we consume remains free from harmful chemicals or contaminants.

Backflow preventers are required to be tested annually. If the inspection fails – the necessary repairs or replacements are required to be done as soon as possible. An OWWA (Ontario Water Works Association) licensed and approved trade or equivalent license (i.e. plumber, sprinkler fitter), is required in order to service them.