Connection of fire sprinklers to irrigation lines.

[Luigi M. Guanio]

Is there any code to be concerned with in connecting building fire sprinklers with the landscape irrigation system?

[Ivy MunionParticipant]

: Is there any code to be concerned with in connecting building fire sprinklers with the landscape irrigation system?Im US based, and in my area fire sprinkler services must be independent from the domestic water service i.e., separate service, separate curb shutoff, etc. I dont know what is required where you are, but if the irrigation system is fed from a well or cistern, youll likely need a large storage tank and pumped system for the fire sprinklers. Do some research locally.

[Ivy MunionParticipant]

: Is there any code to be concerned with in connecting building fire sprinklers with the landscape irrigation system?Ok several things come to mind. 1- Flow rates. If your using the irrigation how will this effect your K factor per head?. 2- Fire supression systems normally are black steel piping and using this system for Irrigation will hasten this system to rust out. 3- Some codes allow the sprinkler system to be taken off the domestic water supply for a certain number of heads. Most plumbers have no idea of the NFPA codes so asking a local guy may not help much. I happen to hold several licenses including a Master Plumbers and a Master Fire Supression piping contractors as well as a Stationary Engineers so being an Expert I learned to read the Local codes. As a general opinion Dont even think of taking ANY line off a fire supression system. Take a line off the domestic USE non Ferrious materials and Get an APPROVED Back flow prevention device or better yet try using an air gap over a tank THEN pump the water to the fields. Much safer . OR call a Master Plumber ..READ the NFPA section 13 ( national Fire Protection Association) Sprinkler Systems are much more dependent on sizing than plumbing sprinklers depend on lots of cool sizing stuff. Have a great one

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