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When is a sleeve required (or not required) at the base of a sprinkler riser when it comes through a floor?
Is there a requirement I'm missing in NFPA 13, NFPA 24, or the plumbing code? Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe
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What methods do people use to drain a riser that is located in a basement?
We have a four-story building with the sprinkler riser in the basement. The basement consists of a small mechanical room and the rest is earth-filled. Would it be permitted to run a drain pipe up to the surface, which would drain the majority of the system until the water finds its level, and then provide a secondary 1" drain which would run to a sump pit? In this particular situation, the remaining water adds up to roughly 20 US gallons. The sump pit is 42 US gallons, and the sump pump is rated for 50 GPM. Thank you very much! Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe When coming out of a pump room with underground feed which then connects to an underground loop with a bullhead tee, are isolation valves required on the bullhead tee?
Sent in anonymously for discussion. Click Title to View | Submit Your Question | Subscribe |
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