To me that reads 4.2 gallons.Does it make sense that a 4.2 would be OK for a 2" and not meet the 6.2 for a 1.5" system?
All washers require 2" drains. Your board limits you to 6.0 and your manual says your unit puts out 4.2
What numbers are they going by?
And if you really want to find out what it pumps, pull it away from the wall and let it drain into a gargage can, time it, and then measure how many gallons were pumped.
http://www.searspartsdirect.com/part...r-Parts-manualThe laundry tub requires a minimum carry-away capacity of
4.2 gal. (15.9 L) per minute.