82
Bacteria Filter
<Plumbing Pit>
Main Switch
(Lamp off when OFF)
○ Ｉ
ＯＦＦ
Water valve
Air valve
[6]Maintenance 11.
For the equipment of bacteria filter, replace it once a year (water/air) with
filter case.
Use the procedure below to replace the filters.
(1)Raise the chair to the position where the pit cover can be taken off and
then turn the main switch off.
(2)Turn off the water and air supply valves of the plumbing pit to cut off the
supply of water and air.
(3)Run water and air from the threeway syringe to release the pressure in
the lines.
(4)Take the pit cover off the plumbing pit.
Lift up the pit cover upright.