Right now, the teeth and solenoids have not been integrated into the shell, so they must be printed separately and attached (I used silicone).

Coat the form for the pump chamber with silicone. Separate form from silicone chamber and trim. Attach with more silicone to the valves. Make additional tube section for saturometer. Silicone saturometer into tube section, and attach tube section to outflow valve on pump chamber.

Silicone the teeth and solenoid to the shell (if they are not already printed on shell).

Silicone electronics in position. Solder connections. Leave connectors for batteries to be charged externally.

Thoroughly coat electronics with epoxy to insulate from salt water.