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  1. Sprinklers89

    Replacing 3.9k sprinklers

    We had a inspector during an annual inspection write up a bunch of painted sprinklers. We now are contracted to do the deficiency repairs. I ended up having to reverse engineer the system (to the best of my ability) to prove the new K-factors would work.
  2. Sprinklers89

    Replacing 3.9k sprinklers

    Yea the heads are SSP and the problem is the only Senju sprinkler I found was a concealed sprinkler these are semi-recessed.
  3. Sprinklers89

    Replacing 3.9k sprinklers

    Yeah, the building dept has a floor plan but that's it. Haven't had luck finding out who the sprinkler install company was yet.
  4. Sprinklers89

    Replacing 3.9k sprinklers

    There is no comparable sprinkler everything now days is 4.9k I don’t need the sin number I know what sprinkler it is… it’s a reliable 3.9k… I needed a solution to replacing 3.9k with 4.9k without a re-calc of a building with no sprinkler plans that’s covered in sheet rock for the last 15 years.
  5. Sprinklers89

    Replacing 3.9k sprinklers

    Why would you send one to reliable? I’ve talked to them and said because it code changes/updates the heads are obsolete and no longer made. The AHJ says since I cannot get the 3.9k sprinkler (in any make or model) then my option in his opinion is to install new 4.9k heads and re-calc the system...
  6. Sprinklers89

    Replacing 3.9k sprinklers

    Have a situation where an inspector wrote up a bunch of 3.9k reliable sprinkler in a hotel that are painted. Issue is these heads are discontinued. Building owner has no records or plans or calcs for the fire system. Is there any other option then trying to do a survey (with closed walls and...
  7. Sprinklers89

    Finding Freelance Work

    Would having an attorney draw up a liability clause maybe be a good idea? One you can use for every contractor saying they will review it and take liability?
  8. Sprinklers89

    Finding Freelance Work

    Travis, good questions.. my employer is fine with me using their software. One question I would like to ask you about the liability insurance I know that everyone says to get it and I definitely will, but if your not stamping the plan your sending it back to a company and they are stamping it...
  9. Sprinklers89

    Finding Freelance Work

    I'm currently considering picking up some freelance work, does anyone have any suggestions on where to start looking for contractors.

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