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 Whole house backflow preventer vs at each point water can backflow
Author: encinoman (CA)

If a backflow preventer is placed near the house meter, is it still required to install backflow preventers at each point like at water heaters?

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 Re: Whole house backflow preventer vs at each point water can backflow
Author: srloren (CA)

No. But be sure to have it tested and certified per water district specifications.Also be sure you understand what causes a cross connection and that maintenance is required



Edited 1 times.

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 Re: Whole house backflow preventer vs at each point water can backflow
Author: hj (AZ)

The one at the meter protects your neighbors. The one at the water heater, although I cannot imagine why you would need it, protects YOUR house plumbing.

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