STEP 15: Close Valve
Rotate valve clockwise to close.
STEP 16: Check Cushion Height
Wiggle fingers to make sure there is approximately ½
inch of air between person and bottom.
Caution: Avoid 'bottoming out'.
The cushion is most
effective when there is air between all parts of the person
and the chair. If the person has bottomed out, please
add air and repeat the process.