All (especially Californicators): We have to cross a seismic joint with the piping that supplies a combination standpipe in a mid-rise building (no PRV's to test). As a combo, there's a collection pipe for sectional test and drain discharge, and for reasons peculiar to this building, our first choice is to bring the gang drain back to the riser room, as it's the only place with a SS trap in the basement. We're trying to decide whether a seismic joint is required of the drain pipe, which is normally dry and never under system pressure in any case. I reckon I should know this, but I don't think we've had to address this condition in forever, maybe never.
[cid:image001.jpg@01DA7606.5400C970] Steve Leyton, President T | 619.255.8964 x 102 | www.protectiondesign.com<http://www.protectiondesign.com/> 2851 Camino Del Rio South | Suite 210 | San Diego, CA 92108 Fire Protection System Design | Consulting | Planning | Training
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