Nov 3, 2009 · The backflow preventer, and the ball valve to isolate the irrigation system do not make for a closed system anymore than the angle stops or faucets on each plumbing fixture.

Oct 30, 2009 · Wow, lots of comments and follow up questions! Thanks. All buildings are commercial - a parking garage, a medical office building, and an apartment building. The MOB at the moment only …

Oct 30, 2009 · There used to be a requirement for a backflow preventer that protects potable water from an irrigation system. The device had to be located a minimum 6” above the highest irrigation head.

Oct 19, 2009 · It should seem reasonable that a stand-alone commercial garage with five or six parking bays will not have a sprinkler system. It should seem reasonable that it will not have a mechanical …

Oct 19, 2009 · If you have a back flow preventor as part of the sprinkler riser stack. Where should the gage be for the city water main pressure coming into the system?? Before the back flow preventor?? …

Aug 6, 2024 · The restaurant owner planned to install a fire sprinkler system in the restaurant itself and use a 2-hour wall to separate it from the neighboring space. Although the building department …

Oct 16, 2009 · The Pennsylvania Uniform Construction Code (PA UCC) has become a bureaucratic maze, riddled with inconsistencies and inefficiencies that create confusion for code officials, …

Sep 3, 2025 · If I install a gravity sewer system that takes all of the effluent both liquids and solids from both residential and commercial locations to a wastewater treatment facility that does Title 22 tertiary …

Apr 12, 2017 · The question of whether to do a NFPA 13 or 13R system always comes up and no one in the office has a very good handle on which system to use. I've always used 13, because it is the safe …

May 23, 2019 · I am a project manager for a real estate development firm. One of our clients is an automotive repair facility that also performs oil changes. All locations have a lube pit (basement) …