And the other is deodorization with ventilation
ducts. See the picture on the right. The the size of
vent pipe is 1-1/2'' (40mm).
It is also possible to not install ventilation ducts,
which will save a lot of trouble and cost. But
activated carbon must be replaced once a year.
5,Finally connect the toilet and lock it with a 90-110mm hose clamp (H). The
other side of the water inlet is connected to the shower room or the sink or urinal.
Please note that the cover "K" can only be opened when the arrow is down. When
you don't use this water inlet, cover it tightly and point the arrow at the others
direction.