Some squeegees are lowered by hand and some lower automatically when the machine moves forward with the water control turned on. Â The vacuum motor may be a 12, 24 or 36 volt motor, and it may be found in different places in the machine depending on the make and model, but the principle is the same.
 It is basically a vacuum motor pulling air and water through a hose attached to a squeegee on the rear of the scrubber. Vacuuming up the dirty water on an automatic scrubber hasn’t changed a whole lot since the machines were first developed. To recap, the first part is an overview of all the problems discussed and the second part is focused why your scrubber isn’t putting water down and if you’re reading this then you probably are either having issue with your scrubber not picking up water or are interested in learning some of the potential reasons for a scrubber leaving water behind.
This is part 3 of a 5 part series on common automatic floor scrubber problems.