Is Dbl-check/backflow preventor required Kings Park Long Island on residential irrigation system?

Patchogue Phil_2

What's the latest requirement?

Jamie Hall

Whether it's required or not, it would be a good idea to have one…

mattmia2

Michigan requires an RPZ valve or vacuum breaker which is the high hazard category. A dual check wouldn't be sufficient in michigan

P2902.5.3 Lawn Irrigation Systems

The potable water supply to lawn irrigation systems shall be protected against backflow by an atmospheric vacuum breaker, a pressure vacuum breaker assembly or a reduced pressure principle backflow prevention assembly. Valves shall not be installed downstream from an atmospheric vacuum breaker. Where chemicals are introduced into the system, the potable water supply shall be protected against backflow by a reduced pressure principle backflow prevention assembly.

Patchogue Phil_2

https://forum.heatinghelp.com/discussion/comment/1861199#Comment_1861199

Absolutely.

A double-check is big bucks (plus inspections/tests) compared to vacuum pressure break valve.

Some years ago in Suffolk County, Long Island, someone challenged the requirements for back flow prevention for residential. They won. So then the back flows weren't required. I've long since not been involved with irrigation install requirements, no idea of that requirement is again code. Specifically in Kings Park. Some towns have their own code requirements.

Mad Dog_2

Hey Phil....Best thing to do is just call the Suffolk County Water Authority...Some Water Authorities in Nassau allow a PBVB (Pressure vacuum breaker)...much cheaper. Mad Dog

pecmsg

every municipality has there own rules and regulations.

Kings Park is part of Smithtown

pecmsg

https://forum.heatinghelp.com/discussion/comment/1861219#Comment_1861219

Building Department | Smithtown, NY - Official Website

Mad Dog_2

Yes, but usually the Water District has final say and specs. Mad Dog