Larry, I’d disagree with that interpretation as the minimum drain size is 1 inch. I believe that “connection” is the key word here asboth drains and test piers are not part of the system but attached to it. I think what’s being said is you can take the test port off of the drain line if properly configured rather than need a separate connection to the system.
On Thu, Sep 20, 2018 at 8:41 AM Larry Keeping <lkeep...@plcfire.com> wrote: > I would say that test pipe would do the job, based on what it says in > 6.10.4: > > > > *6.10.4 When the drain required in 6.9.1 is arranged as a test connection, > a separate test connection shall not be required.* > > > > Larry Keeping > > > > *From:* Sprinklerforum <sprinklerforum-boun...@lists.firesprinkler.org> *On > Behalf Of *James Litvak > *Sent:* September-20-18 11:00 AM > *To:* sprinklerforum@lists.firesprinkler.org > *Subject:* 13R Test and Drain Question > > > > On a 13R system, 6.9.2 specifies that the drain piping must be at least 1" > nominal size. If a residential system riser has a 1" drain pipe to outside > that has either a test valve with a 1/2" orifice or terminates at a broken > sprinkler with a 1/2" orifice, does that drain piping still meet the > requirements of 6.9.2? > _______________________________________________ > Sprinklerforum mailing list > Sprinklerforum@lists.firesprinkler.org > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > -- Sent from Gmail Mobile
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