I was reading the Air Venting discussion from early 2020 and this really didn't come up.
The code only requires a single vent, but I can think of several situations where I there would every branchline would be trapped. Say a tree system with BL on riser nipples, any system in an peaked roof where the branchline travel up the pitch then back down. I don't under stand how the single air vent relives the air from more than that single branchline it would be installed on. I'm I think of this too much like trapped water for drainage? Jerry Van Kolken Millennium Fire Protection Corp. 2950 San Luis Rey Rd. Oceanside, CA 92058 (760) 722-2722 FX 722-2730 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
