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  • Users: okieduck
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  1. okieduck

    Backflow preventors

    Hi everyone! Our city is researching the issue of backflow preventors and double detector checks. The problem is, we have researched EPA, AWWA, and other agencies for standard specifications and can not find any. Basically it is up to the local authorities to determine what shall be used. If...
  2. okieduck

    4" firelines and detector check valves

    Hi All! This is the first question Ive posted, so please be gentle. Im reviewing plans for fire flow check valves and had a couple questions that no one @ my job can seem to answer. 1. Other than cost, why would a commercial business or a city use a 4" fire line. 2. Ive got a fire flow...

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