Begin by installing the water trap tubes into the counterlungs. Lay the outerbag with the back side facing up. One end of each tube is slightly flared to prevent it from sliding too far into the fitting. Note that the tubes are different. The inhalation side tube is white, and the exhalation side tube is black machined acetal.
Inserting the non-flared end first, slide the correct tube into each counterlung from the bottom fitting until it is fully inserted (See Figure 1). Note that there is an O-ring inside of both the inhalation and exhalation counterlung fittings. This is to trap any water inside the counterlungs for de-watering.
