Dry pipe with attic heads
Dry pipe with attic heads
(OP)
Dry pipe over 500 gallons with attic heads having to meet 60 second rule
Dry pipe by itself being over 500 gallons needs a quick opening device anyway?
And because of the attic heads in use total system still has to meet 60 second rule???
Thanks
Dry pipe by itself being over 500 gallons needs a quick opening device anyway?
And because of the attic heads in use total system still has to meet 60 second rule???
Thanks





RE: Dry pipe with attic heads
RE: Dry pipe with attic heads
how about 7.2.3.4 for systems 501 to 750??? I read it to say the 60 second is not required if you have a quick opening device.
using 2010 edition
RE: Dry pipe with attic heads
Also correct about the quick opening device negating a specific delivery time. BUT, given that accelerators are generally an in-stock item and fairly easy to plum into the dry trim after the fact - I don't buy an accelerator and have the boys trim the dry valve without it. When it comes to test time, we snap the inspectors test open...if the water gets there in under 60 seconds, bobs your uncle and thanks for the $350 savings. If the water doesn't get there in time, send an apprentice over to the supplier and pick up an accelerator. A good journeyman can plumb it into the trim in less than 1 hour, and we're no worse off than when we started.
RE: Dry pipe with attic heads
reviewing 16 different apt buildings