Here's an interesting twist on this issue. Where does it say that
you have to have a valve room?
Roland
On Mar 13, 2008, at 10:06 AM, Thom McMahon wrote:
I have seen the RPZ and dry valves under the first landing of the
stairs, then this area is enclosed and heated. Remember your riser
is wet and subject to freezing below the clapper of the DPV. Due to
the low overhead and access issue's this arrangement would require
AHJ approval, if the 1st landing is less than 7'-0" AFF.
Thom McMahon
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