• Welcome to the new and improved Building Code Forum. We appreciate you being here and hope that you are getting the information that you need concerning all codes of the building trades. This is a free forum to the public due to the generosity of the Sawhorses, Corporate Supporters and Supporters who have upgraded their accounts. If you would like to have improved access to the forum please upgrade to Sawhorse by first logging in then clicking here: Upgrades

Search results

  1. A

    NFPA 17A Air Test

    Problems would arise from residual moisture left in pipes, causing rust and sediment to block nozzles potentially. If system discharges you flush the pipes and then blow nitrogen or "dry air" through. Id rather not have to drive around with a bottle of nitrogen in my truck.
  2. A

    NFPA 17A Air Test

    Hello, NFPA 17A 6.4.4.2 states that a test using dry air or nitrogen must be preformed on the piping on a wet chemical system. We have always used a standard air compressor with an inline water separator filter and this has worked great. We have one technician who is being antagonistic and says...
Top