WAC 296-150V-1560
What is the minimum clearance for
drain outlets? The drain outlet and couplers must have a
minimum clearance of three inches in any direction from all
parts of the structure or appurtenances and with at least
eighteen inches unrestricted clearance directly in front of
the drain outlet.
[Statutory Authority: Chapter 43.22 RCW. 99-18-069, §
296-150V-1560, filed 8/31/99, effective 10/1/99.]