Legend Valve’s T/S-2102NL lead-free, forged-brass, full-port ball valve with drain isolates a branch or end point device from the rest of the plumbing system.
While Gerry Kennedy’s formal relationship with the Plumbing-Heating-Cooling Contractors — National Association concludes Dec. 31, he will continue to be a part of the organization.
The 2015 Uniform Plumbing Code touches on the various methods to prevent backflow and back shiphonage in section 603.3, but diving a bit deeper could be useful.