How to Find Your Backflow Preventer’s Serial Number
Where the serial number sits on a backflow preventer, how to tell it from the model and size, and what to do when the tag is missing or unreadable.
Today, South Jersey Backflow was in Clinton, NJ, performing an inspection and service at a local hotel with a pool and spa. The hotel uses a significant amount of water for the pool, spa, and hotel operations, requiring robust backflow protection to prevent contamination of the public water supply. The backflow preventer installed is the A.Y. McDonald 747-01 RPZ, a high-quality solution for commercial properties like this one that have complex plumbing systems with potential for cross-contamination.
The A.Y. McDonald 747-01 RPZ was located in the utility room near the hotel’s mechanical systems for the pool and spa. Our visual inspection showed:
We proceeded with the full backflow preventer test:
Since the backflow preventer passed all tests, we performed the following routine maintenance:
After completing the inspection and maintenance, we:
Before leaving, we advised the hotel’s management to:
Another successful service by South Jersey Backflow, keeping Clinton’s hotel pool and spa safe and compliant!
Where the serial number sits on a backflow preventer, how to tell it from the model and size, and what to do when the tag is missing or unreadable.
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