4 Wipe off any foreign particles attached to the O-ring and O-ring seal surface (Fig. A position) using soft, lint-free cloth or something similar.
If using tissue paper to wipe it off with, be careful, since fine lint may be left behind.
O-ring (white) A
O-ring
5 Check the O-ring installed.
Check the front-side O-ring (white) installed.
Feel the O-ring with the tip of your finger to confirm that there is no step. If you feel a step, the O-ring may be twisted. Reinstall it, following the instructions on page 24.
Front-side O-ring (white)
If the O-ring is twisted or stretched, or if there is any foreign particle on or underneath it, water will leak in.
Check the back-side O-ring (orange) installed.
If installed incompletely, reinstall it, following the instructions on page 25.
Back-side O-ring (orange)
| ●Cross section | | ●Correctly |
| | installed O-ring |
| of the O-ring | |
| Flat face | and groove |
| |
| | |
| ●Cross | | |
| section of | Bottom face of | |
| the groove | |
| groove | |
| | |
