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  1. #11
    Join Date
    May 2013
    East Tenn

    Default patching a hole in fire sprinkler system

    If its a sprinkler there should be threaded unions any way. The only weld tie ins are where the 1 1/2" head lines couples into the 4" main. Home Depot will thread them for you or HF has a kit for bout 50-60.

  2. #12
    Join Date
    Nov 2003


    in many places...On any change or repair to the fire sprinkler system... the work has to be done by a contractor approved by the insurance underwriter... then inspected and recertified... in addition many municipalities and counties require an inspection and approval by their own inspectors....

    failure to do so may entail criminal as well as civil penalties on top of nullification of ALL insurance coverage...

    a failed seal and loss of air pressure could result in an entire warehouse full of goods getting soaked.... not even considering a fire..

    HF 90 amp fluxcore???????????? kidding right??

    The very best answer is to smile politely and thank him for considering you but you needed to decline the offer...

    The more you know, The better you know, How little you know

    “The bitterness of poor quality remains long after the sweetness of low price is forgotten”

    Buy the best tools you can afford.. Learn to use them to the best of your ability.. and take care of them...

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