Magic Flight Orbiter Manual page 5

FILLING IT UP
ALWAYS REMOVE GLASS FROM BASE WHEN
ADDING/REMOVING WATER TO AVOID DAMAGING WOOD
Remove GLASS from BRACE and BASE.
Add water to the FILL LEVEL.
Return GLASS to the BASE and BRACE.
With GLASS in the BRACE, return the SLIDE
to the top of the BRACE to lock in place.