IS A BACKFLOW DEVICE NEEDED FOR HYDRANT

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IS A BACKFLOW DEVICE NEEDED FOR HYDRANT
Author: JBARROWS85 (MA) HYPOTHETICAL: 6" DOMESTIC WATER LINE GOING INTO A RESIDENTIAL PROPERTY. WATER METER IS IN A VAULT. THE WATER LINE THEN GOES TO A HYDRANT THAT WILL BE USED FOR WASHING DOWN MACHINARY. DOES THERE NEED TO BE A BACKFLOW DEVICE AFTER THE METER? IF SO, CAN IT BE IN THE VAULT? Edited 1 times.
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Re: IS A BACKFLOW DEVICE NEEDED FOR HYDRANT
Author: bernabeu (SC) A 6" main suggests a COMMERCIAL multiple dwelling residential property. Even if an incorporated HOA it IS a commercial multiple dwelling residential property. An RPZ is most likely REQUIRED. Said RPZ may NOT be in a below grade vault. ============================================== "Measure Twice & Cut Once" - Retired U.A. Local 1 & 638
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Re: IS A BACKFLOW DEVICE NEEDED FOR HYDRANT
Author: hj (AZ) If the hydrant can/will have a hose attached to it, then it does need an anti siphon/backflow preventer By definition said device must by positioned a minimum of 12" ABOVE the ground level.
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