- CARE OF YOUR REVERSE OSMOSIS SYSTEM -
REVERSE OSMOSIS SYSTEM CARE GUIDE
MODEL NO. 625.384700
1.AT LEAST every 6 months, replace the prefilter and postfilter cartridges. Clean or replace the flow control and screen.
2.Replace the RO membrane cartridge when the percent rejection of total dissolved solids (TDS) is less than shown in the specifications (see B, below).
If any of the following occur before the 6 months, replace as directed.
A. Slow Making of Produot Water: Replace the prefilter cartridge. | C. Ch/orine Tasteand/or Odor: Replace the prefilter,post filter and |
If the production rate does not improve, replace the post filter car- | RO membrane cartridges. |
tridge and RO membrane cartridge. |
|
B. High Total Dissolved Solids (TDS) in Product Water: You can |
|
get a free TDS test through some Sears retail stores or service |
|
departments. If the store or service department does not have a |
|
TDS meter, you can send treated and untreated water samples to |
|
a water analysis lab for testing. It is important to test both the |
|
treated and untreated water to determine system performance. If |
|
the TDS is not within the system's performance guidelines, |
|
replace the prefilter, post filter and RO membrane cartridges. |
|
OTHER TROUBLESHOOTING
PROBLEM
Chlorine taste and/or
odor in the RO product water
Other taste and/or odor
System makes product water too slowly
CAUSE
The ppm of chlorine in your water supply exceeds maximum limits, and has de- stroyed the RO membrane.
The prefilter is no longer removing chlo- rine from the water supply.
Postfilter expended.
RO membrane cartridge expended.
Contamination in product water storage.
Water supply to the RO system not within specifications.
Prafilter or RO membrane cartridges plugged with sediments.
CORRECTION
Ifthe water supply contains more than 2.0 ppm of chlorine, addi- tional filtering of the water supply to the RO is needed. Correct this condition before doing maintenance on the RO system.
Replace the prefilter, post filter and RO membrane cartridges, flow control, and screen.
Replace the post filter cartridge. If taste and odor persists, re-
place the prefilter cartridge, RO membrane cartridge, flow con- trol, and screen.
Use sanitizing procedures. Replace the post filter cartridge.
Increasewaterpressura, praconditionthewater, etc., as needed to conform before doing maintenance on the RO system.
Replace the prefilter cartridge. If rate does not increase, replace the postfilter cartridge, RO membrane cartridge, flow control, and screen.
System makes lower Storage tank
amount of produot water psi. than usual
High tota/ dissolved so/- WatersupplytotheROsystemnotwithin
ids (TDS) in product wa- specifications, tar
RO membrane cartridge expended.
Water leaking from fau- Drain side of faucet airgap (3/8" tubing)
oet airgap holeplugged, restricted, or incorrectly con- nected to drain point.
Continual water flow to ; Check valve or automatic shutoff assem-
drain | bly plugged, restricted or parts worn |
Open RO faucet and drain tank until flow slows to a drip, Keep
faucet open and check tank pressure. If low, pressurize to 6 psi. Close faucet to refill the tank.
I ncraase water prassure, precondition the water, etc., as needed to conform before doing maintenance on the RO system.
Replace the prefilter, postfilter and RO membrane cartridges, flow control, and screen.
Inspect and eliminate restriction or plug. Refer to installation instructions for proper drain connection.
Clean, repair or replace as needed.
Note: Sanitizing is recommended after servicing inner parts of the system(see page 9).
14
