Testing / Certification

We test, certify, and repair back flow devices from 1/2" -12".

        Old 8" Valve at Flying Tiger.... El Segundo                                                   New installed 8" RP Device

We request all original paperwork be mailed to us at

Bob and Marc Plumbing

Attn: Back Flow Testing

3336 West Rosecrans Avenue

Hawthorne, California 90250

We will come out and test your device. Once certified, we will send you

a bill, and then send in your paperwork for you.