Why do you have to close the #2 valve when testing?

by Matt Kuschel, Test Gauge – Elgin

Here at Test Gauge & Backflow Supply, one of the leading technical questions that we receive on a weekly basis has to do with backflow testing procedures. We are very well aware that backflow testing isn’t something that every CCCDI inspector does on a daily, weekly or even monthly basis. We believe continued dialogue and training are keys to keep our most important resource protected …

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