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All containers, surfaces and items exposed to water can accumulate a clear or discolored film which may also be
slippery or slimey to the touch. This is a bio-film that is non-pathenogenic and usually of no harm.
This film is most commonly a nuisance and is readily wiped off. It is this reason we suggest a simple
cleaning procedure prior to returning new filters and membranes to the reverse osmosis system.
This procedure may be performed at any time when changing filters and membranes,
Step 1:
A:
Empty All Available Filter Housings** by Following Steps 1 through 4: R.O. - Replacement of Filter Cartridges.
(Open faucet, Close inlet water supply, Empty all housings of their filters)
B:
Empty Membrane Housing by Following Steps 3 and 4: R.O. - Replacement of Membranes.
(Steps 1 and 2 have been already done, see above "A", Empty housing of the membrane)
**NOTE: All 4 and 5-Stage Units have In-Line PostFilters. These self-contained filters are not included in this procedure.
Step 2: Using disinfecting wipes, mild cleaning solution, and/or warm water and soap - simply wipe around the
housings and any exposed areas. Remove any film and/or discoloration. Repeat, if needed. Rinse thoroughly.
Step 3: Follow all procedures for the replacement of the filters and the membrane.
CHECK AND FOLLOW ALL APPROPRIATE STEPS FOR "SYSTEM START-UP AND OPERATION PROCEDURES"
Installed on every R.O. Unit produced by EWS, Inc. This one control valve takes the place of up to 3 devices commonly
needed in a reverse osmosis system and can be easily replaced if needed.
1)
The control valve monitors the water entering the storage tank and when the storage
tank is full, the valve turns off the water processing of the system. Less Waste.
2)
The control valve regulates the correct amount of reject water flushed to the membrane.
3)
The control valve has a positive sealing check valve. The check valve accurately monitors
internal pressure and protects the system from pressure surges and reverse flows which
could damage the membrane.
Note:
It is important to completely empty the storage tank monthly to provide a complete tank of fresh water to
prevent TDS "creep" which prevents the proper pressure on this control valve and within storage tank.
Correct Application of Booster Pumps - 5-Stage Units
The pump is replaceable as needed and is always installed after the first stage ("Sediment") and provides the proper
and required and constant pressure (minimum 40 PSI) through the membrane.
Booster pumps are critical to the effective performance of reverse osmosis membranes and
are recommended in applications where feedwater pressure is less than 40 PSI.Feedwater
high in Total Dissolved Solids (TDS) may need a boost, in order to perform within rejection
parameters.
Standard Components: Always connect in the following order:
1) Transformer 2) TSO-Tank Shut-Off Switch 3) Pump
Tank Shut-Off Switch: Mounted in-line with the hydro-pnuematic pump as close to the tank
as possible, this switch will automatically turn the booster pump off when the tank is full.
www.ewswater.com
R.O. - Cleaning of Empty Housings
or after extended periods of inactivity of the system.
TFC Membranes
RSR-150
5-Stage Units
O: 702.256.8182; M-F 8:30am-4:30pm PST
NOTE:
Control Valves
Pump comes fully assembled
with RU500T35 units
E: customerservice@ewswater.com
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