6
Pre-Treatment Summary Chart
Recommended
Feed Water
Range
Potential
Effect
Pre-Treatment Solution
Waterite
Models
TDS
< 2000 ppm
Reduced production rate
Increased salt passage
Replace water source
n/a
T. Hardness
< 6 grains/gal
(103 mg/l)
Scaling of membrane surface
Reduced production rate
Automatic Softener
A Series
Fusion²
Sanitizer
RS Series
Total Iron
< .05 ppm
Reduced production rate
Fouling of membrane surface
Iron deposits in equipment
Iron Remover
Softener (levels less than
5 ppm)
Paterson
I.R.
Premier
Sanitizer
Tannins
< .5 ppm
Reduced production rate
Fouling of membrane surface
Softener with organic
scavenger resin
A Series
Fusion²
RS series
Chlorine
< .1 ppm
Permanent membrane
damage
Increased salt passage
Carbon Filter
CF Series
Excelclear
Carbon
pH
5.5 – 9.5
Internal corrosion
Lime scaling in equipment
Plumbing damage
Replace water source
Adjust pH
Call your
dealer
Organic or
Microbiological
Activity
0
Reduced production rate
Fouling of membrane surface
Sliming of pre-treatment
equipment, odour
UV Disinfection followed
by 1 micron filtration
Well chlorination
UV Max
RE Series
UV
WellPro
Manganese
<. 05 ppm
Reduced production rate
Fouling of membrane surface
Manganese Greensand
Filter
MG Series
MT Series
Hydrogen
Sulphide
0
“Rotten egg” odour
Internal corrosion
Iron Remover (<1 ppm)
Manganese Greensand
Filter (> 1 ppm)
Paterson
I.R.
MG Series
Turbidity
SDI < 5.0
Reduced production rate
Plugging of membrane
Rotary vane pump damage
Multimedia Filter
Pre-treatment cartridges
MF Series
Excelpure
