X-1 (H2O Audio) S6-1A3 - Manual (Page 3)

This T-Seal is shown out of alignment
and will not protect the iPod from
water when closed.
T-Seal must be installed completely in
all four corners of the housing.
This T-seal is correctly seated in a closed
housing, sealing the housing and
protecting the iPod from water.
The misaligned T-Seal becomes pinched
between the base and lid (as Shown)
creating an opening in the housing that
will cause the housing to flood.
The dotted lines in the photos below indicate
where the contact surface for the T-Seal is located
Correct
Incorrect
side view