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  1. chopsnrox

    NFPA 13D and pressure regulators/reducers

    Hello What’s your thoughts on PRV’s/regulators on 13D systems? I know 6.5.3 talks about water softener’s, etc., but what about PRV’s? I would imagine, the friction loss should be taken into consideration anyways, but should the sprinkler piping be tied in upstream of the regulator anyways to be...

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