Stage 3 : RO Membrane
This is the heart of your Tata Swach Nova Silver RO Water Purifier. This National Science
Foundation (US)- NSF listed membrane has fine pores as low as 0.0001 micron in size to
reduce water contaminants such as dissolved salts, pesticides, heavy metals and water
borne micro-organisms such as virus, bacteria etc.
Dry membrane that comes with your system maximizes shelf life and is put in your
system at the time of installation.
^
Recommended replacement cycle: 2 years
Stage 4 : Bacteriostatic Granular Activated Carbon (GAC) with Silver impregnation
technology
This Post Carbon GAC cartridge imparts bacterio-static property to the purified water
and enhances the taste of water. The silver impregnation technology used in this
cartridge ensures improved bacteriostatic performance for the entire life of the carbon
capacity. This Silver Action Inside of the bacteriostatic GAC greatly reduces the chance
of bio-fouling and hence increases life of carbon cartridge.
++
Recommended replacement cycle: 1 year/ 6000 Ltr
*If this cartridge chokes sooner than the recommended replacement cycle, it is advisable to install a pre-filter (available
separately at a cost). To be noted that the life of 1st stage sediment filter depends upon the input water quality. Standard test
conditions have ISO coarse A4 dust in water which is passed through the cartridge for 9000Liters at a pressure of 60psi.
+ The life of GAC cartridge depends upon the organics, chlorine, etc present in the input water supply. Under standard test
conditions the life is measured as 9000 Litres with 2ppm chlorine water passing through the cartridge.
^Under standard test conditions of running the system at 10psi input pressure, TDS up to 750 PPM, turbidity less than 5 NTU
and temperature of 25
C. Depending upon the inlet hardness and TDS levels the membrane may need to be replaced earlier
than 2 years.
++ The life of GAC cartridge depends upon the organics, chlorine, etc present in the input water supply. Under standard test
conditions the life is measured as 6000 Litres with 2ppm chlorine water passing through the cartridge.
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