Feed Water Requirements - Ecosoft ROBUST MINI Installation And Operation Manuallines

INSTALLATION AND OPERATION GUIDELINES FOR REVERSE OSMOSIS SYSTEMS ECOSOFT ROBUST MINI,
ROBUST 1500, ROBUST PRO, ROBUST 3000, ROBUST 3000MAX, ROBUST 4000

2.2 FEED WATER REQUIREMENTS

Parameter
pH
TDS, ppm
Total hardness
Alkalinity
Active chlorine, ppm
Total iron, ppm
Total manganese, ppm
Chemical oxygen demand,
ppm O
2
Total microbial count (TMC),
(CFU per 1 mL)
E. coli (CFU per 100 mL)
If feed water quality does not meet specified requirements, membrane and filter service life may decrease. If
1
aiming to purify raw water (well water/ground water etc.), it is recommended to carry out detailed water anal-
ysis. If any constituents exceed the above limitations, it is advisable to install a special filter upstream of your
reverse osmosis system. Consult professional water treatment specialist for proper selection of an appropriate
filter for your water.
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RObust Pro
250-500
100–400 ppm CaCO
3
100–200 ppm CaCO
3
Value
1
ROBust 1500, ROBust 3000,
RObust 3000MAX, Robust Mini,
Robust 4000
6,5...8,5
< 1500
< 500 ppm CaCO
< 325 ppm CaCO
< 0,5
< 0,3
< 0,05
< 5
< 100
None
12
3
3