LG WM3677HW Owner's Manual page 44

Dispenser
Dispenser
Siphon Box
WM3677HW
The dispenser drawer is a multi-chambered
reservoir that allows the user to add all the
appropriate laundry additives before starting
the cycle. It has a place for pre-wash
detergent, main wash detergent, fabric
softener, and bleach. Powdered or liquid
detergents may be used, but softener and
bleach must be liquids.
The dispenser works by using various
solenoids to apply water to different
compartments.
The Siphon Box holds the liquid product
until it is flooded. Then it dispenses the
laundry additive into the stream filling the
tub.
p16~17