Olympus Evis Exera II Instructions Manual page 61

Chapter 3 Preparation and Inspection
If the auxiliary water channel is used for feeding water, never
disconnect the auxiliary water tube during an examination;
leave it attached until the endoscope is precleaned. If the
auxiliary water tube is detached before precleaning, water
remaining in the auxiliary water channel may be spilled on
the surrounding equipment. This could cause damage to
and/or malfunction of the equipment.
Syringe or water tube from a water pump
Luer port
Auxiliary water tube
Connecting end
Figure 3.23
57
EVIS EXERA II GIF/CF/PCF TYPE 180 Series OPERATION MANUAL