22 © 2007-2009 Aquathin Corporation. All rights reserved. Rev 20091029
Most of the problems associated with hard water are eco-
nomical in nature. Hardness causes unsightly soap scum
on fixtures, water spots on glasses and whitish scale de-
posits in your tubs and showers. Hard water means you
use more soap and cleaning agents because they first
have to “clean” the water before they clean anything else.
The following guide defines your water’s hardness based
on two different measurements. Our test determines the
grains of hardness that can easily be converted into the
ppm.
To most effectively remove hardness from your water,
the Aquathin MEGACHAR System can be combined
with the Aquathin SOFT & CLEAN System. Contact
your Local Aquathin Dealer for more information.
Description
Grains of
Hardness
Parts per
Million
Laundry
Detergent
Required
Soft (ideal)
0.0—1.0 0—18
1/4
dispenser
Slightly
Hard
1.0—3.5 18—60
1/4
dispenser
Moderately
Hard
3.5—7.0 60—120
1/2
dispenser
Hard
7.0—10.5
120—180
1/2
dispenser
Very Hard
10.5—
over
180—
over
Full
dispenser