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.

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 shall not be …

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 expensive solution.

May 17, 2011 · What's the difference between a bulk main with independant floor/zone controls for each system vs. a manifold arrangement as shown in exhibit 8.1 of the sprinkler handbook? I don't know …

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 …

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 28, 2009 · I have a question in regards to a sprinkler system water service line. Can TWO 2-inch lines be used to service ONE 3" interior sprinkler system instead of a single 4-inch water service …

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 fire …

Feb 18, 2020 · The building commissioner cited : 1012.2.1 Fire Sprinkler System Where a change in occupancy classification occurs or where there is a change of occupancy within a space where there …

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 …