Nov 16, 2010 · 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 23, 2024 · An automatic sprinkler system installed in accordance with Section 903.3.1.3 (NFPA 13-D) shall be permitted in Group R-3 occupancies. That would likely be a less …

Sep 24, 2021 · Gray water may not be used in an irrigation system unless the gray water has been treated in accordance with standards set out in the State Plumbing Code. (5) Gray water …

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 …

Jun 14, 2019 · As part of the actual construction, three apartments will be gutted and rebuilt as fully accessible units, and the installation of a soffit/chase for HRV ducts and plumbing for the …

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 …

Dec 5, 2017 · 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 …

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 …

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 …

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 …