10
SECTION V. OPERATION & MAINTENANCE
A. Normal Operation
1. It is normal for the Total Dissolved Solids
(TDS) of the water to be higher than normal
during the first 5 gallons of operation, this is
due to the sanitizing solution and the new Post
Filters. After this water is rinsed to drain, the
removal rate should stabilize at a value of
greater than 75%. The optional R.O.
Comparator measures the TDS reduction and
gives an indication of proper performance.
Water pressure affects the production rate and
quality.
2. R.O. systems produce drinking water at
relatively slow rates, it can take up to 6 hours
or more to fill the Holding Tank. Normal
operation is to let the Holding Tank fill with
water and then draw water as needed. When
the pressure in the Holding Tank falls to a
given pressure (as the water is being used) the
Automatic Shut–Off Valve (ASO Valve) will
start water production and the system will
refill the Holding Tank. When the Holding
Tank is full and no water is being used, the
ASO Valve will automatically shut off the feed
water to conserve water. The more water that
is used (up to the capacity of the system) the
better the R.O. system will function. Other
uses for the water are flowers, pets and rinsing
glassware.
With each use it is recommended that you
turn the tap for at least 10 seconds prior to
using water. This is especially important if the
water tap has not been used daily.After periods
of non–use, such as a week of vacation, it is
better to empty the Holding Tank and allow
the system to produce fresh water for use. If
the system is not used for 3–4 weeks or longer,
it is a good idea to resanitize the system and to
change the prefilter and post filters.
B. Changing Filters
THIS R.O. SYSTEM CONTAINS FILTERS
WHICH MUST BE REPLACED AT REGULAR
INTERVALS TO MAINTAIN PROPER
PERFORMANCE. USE ONLY FACTORY
APPROVED FILTERS.
The recommended interval for changing the
filters (not the R.O. Membrane) is every six (6)
months. Typical T.F.C. Membrane life expectancy
is three years. Local conditions may dictate more
frequent changes.
NOTE: If the R.O. Membrane is to be replaced,
see Sec. IV, F.1–3, page 9, for the proper
procedure.
Use a drip pan to catch any water that may spill
when the Filter Housings are removed. Refer to
Fig. 1 page 1 for component location.
1. Close the Feed Water Saddle Valve by turning
fully clockwise and open the Dispensing
Faucet by lifting the handle. Allow the
Holding Tank to empty.
2. Loosen and remove the Sediment/Carbon
Filter and the Activated Carbon Filter
Housings. Discard the filters.
3. Wash the inside of the Housings using a mild
detergent and a soft cloth. Do not use abrasive
cleaners or pads. Thoroughly rinse all soap
from the Housings before reassembly.
4. To sanitize the system and replace the filters:
NOTE: The system should be sanitized before
installing the Sediment/Carbon Prefilter and
Activated Carbon Post Filter.
•Use a good quality unscented 5¼% liquid
chlorine household bleach.
•Add one capful of bleach (this is 2 tsp. or
10 ml) to the Sediment/Carbon Filter
Housing and temporarily install the Housing
without the Sediment/Carbon Prefilter.
Check the Housing O–ring for proper
position in its groove, engage and firmly
tighten the Housing hand tight only.
•Add one capful of bleach to the Activated
Carbon Filter Housing. Carefully fill the
Housing with tap water and temporarily
install the Housing without the Activated
Carbon Post Filter.
•The Dispensing Faucet should be open,
slowly open the Feed Water Saddle Valve.
•As soon as water begins to drip out of the
Dispensing Faucet, close the Faucet.
•Let the system stand for 15 minutes.
•At the end of 15 minutes, in the following
order, close the Feed Water Saddle Valve,
close the Holding Tank Valve and open the
Dispensing Faucet to release the pressure.
•Remove the Sediment/Carbon Filter
Housing and empty. Remove the wrapping
and install the Sediment/Carbon Prefilter.
Firmly tighten the Housing hand tight only.
