Scooba suction bulb preps or cleans the solution valve.
If Scooba's pump valve is blocked with dirt or debris, use the suction bulb to force air or water through Scooba's
Solution valve. Fit the end of the suction bulb snugly over the solution valve and push the air or water through
the solution valve at least 3 times.
These may be either blue or grey in color. If the bulb fits too tightly I have found that you can snip the end of the
bulb off slightly to accomodate the solution valve.