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• The wash pump turns on, water ows to the
lower spray arm, and the check ball blocks
the rear port or upper spray conduit. The
bypass allows low pressure and low volume
water to enter the main conduit, lling the
conduit with no actual spray from the mid and
upper wash components.
• The wash pump cycles off for one second.
Water that is in the rear conduit forces the
check ball to the lower spray port.
• The wash pump cycles on, and water
pressure keeps the check ball positioned to
block water entering the lower spray arm.
Water ows to the mid spray arm and upper
sprayer.
• The wash pump cycles off for 8 seconds. The
water pressure in the spray arms equalizes,
and the check ball is in the bottom or home
position.
• When the wash pump starts, the check ball
again seals the rear port or upper spray arms.
The cycle repeats.
Lower Spray
Arm
Upper Spray System
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