EcoWater ERO-375 User Manual - page 19
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CARE OF YOUR REVERSE OSMOSIS SYSTEM
PREFILTER AND POST FILTER CARTRIDGES
You must replace the prefilter cartridge often to protect
the RO membrane from being destroyed by chlorine,
and/or from plugging with sediments in your water
supply. If the water supply contains both chlorine and
sediments, replace the prefilter cartridge at least every
6 months of product water use. Replace more often
than 6 months if it begins to plug with sediments.
If the water has sediments only, with no chlorine, you
may notice a slower making of product water as the
prefilter collects the sediments. When this occurs,
replace the prefilter cartridge. Also replace the post fil-
ter cartridge.
To replace the filter cartridges, see Figure 18:
1.
Remove (turn to the left) the prefilter cartridge
from the filter head.
2.
Remove the postfilter cartridge (turn to the left) the
postfilter cartridge from the filter head.
3.
Discard both cartridges in a proper manner.
4.
Insert new cartridges, starting with the post filter,
turning to the right to reattach the cartridges.
5.
On the HERO-375, press and hold the button on
the RO electronics enclosure until the green light
begins flashing. Release the button as soon as the light
begins flashing (the light flashes for 3 seconds and
releasing the button before or after that 3 seconds will
not reset the electronic timer).
6.
It is recommended to discard the first full tank after
the filters have been changed to minimize carbon fines.
RO MEMBRANE CARTRIDGE
This reverse osmosis system contains a replaceable
component critical to the efficiency of the system.
Replacement of the reverse osmosis component should
be one with identical specifications, as defined by the
manufacturer, to assure the same efficiency and con-
taminant reduction performance.
The life of the RO membrane cartridge depends mostly
on the pH and hardness of the supply water to the RO
system (see specifications). Cartridge life is shorter
with higher pH. For example, if supply water pH is
from 6.8 to 7.7, the cartridge may last for well over one
year. However, cartridge life may be as short as 6
months if the pH is as high as 8.5 to 10. Higher pH
weakens the cartridge membrane and causes pin-hole
leaks.
It's time to replace the RO cartridge when the red LED
To keep your reverse osmosis system operating and
producing high quality water, you must make sure
supply water is always within the limits shown in the
specifications. Good supply water helps to assure
longer life from the RO membrane cartridge, prefilter
and postfilter cartridges. However, each of these will
wear out in time and need replacement.
This reverse osmosis system contains a replace-
able treatment component critical for effective
reduction of total dissolved solids. The monitor
faucet feature provides continuous analysis of the
systems performance. For systems not equipped
with the monitor faucet function, it is highly rec-
ommended that you have your water tested at
least every 6 months to verify your system is per-
forming properly. Test kits are available by calling
1-800-949-8220, or check the water testing section
of your local phone directory.
If the RO assembly is wall mounted, you may be able
to replace parts with the assembly left on the wall. If
not, simply lift the RO assembly from the mounting
washers and lay on the cabinet floor when replacing
the prefilter and post filter cartridges and RO mem-
brane.
FIGURE 18
prefilter
cartridge
RO cartridge
postfilter
cartridge
Turn cartridges in the direction of
the arrow to remove. Turn them
in the opposite direction to install.
remove
remove
continued on Page 20