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HydraMaster Corporation
CLEANING STROKE PROCEDURE
Purpose:
To eliminate excess moisture remaining in the carpet fiber and the saw tooth
appearance which results from diagonal movement of the cleaning tool on all types
of carpet.
Procedure:
Always move the cleaning tool in smooth, forward and backward strokes. Apply
slight pressure to the forward stroke while the solution is injected into the carpet.
When extracting (drying), apply firm pressure on the forward stroke to ensure a posi-
tive “lock” for the vacuum and minimize the “hopping” effect resulting on carpet that
is not smooth. During the forward and reverse strokes, movement to the right or left
should only be accomplished at the extreme rear of the stroke. Overlapping is also
important to ensure even application of solution and prevent saturation when clean-
ing wand is stopped twice at the same point at the rear of the cleaning stroke. This
is illustrated at the end of this section.
Failure to adopt this procedure can result in increased chance of “clean streaks,” fiber
shrinkage, brown-out and longer drying periods.
OVER-WETTING
Over-wetting is annoying to all concerned, and sometimes leaves a bad impression of
the cleaning process used.
THESE ARE SEVERAL AREAS THAT WILL CAUSE OVER-WETTING
1. Too few vacuum strokes or improper saw-tooth vacuum strokes as shown
in the following illustration.
2. Obstructed, cut or kinked hoses.
3. Vacuum tank drain valve left partially open.
4. Clogged vacuum blower filter or vacuum tank lid not sealing properly.
5. Cleaning a heavily foam-saturated carpet without defoamer. (We
recommend crystal type.)
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