SpectraPure®Inc
.
Fax 480.894.6109 Fax us toll-free 1.877.527.7873
E-mail: [email protected] Visit us on the web www.spectrapure.com
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SpectraPure
®
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CHECKING THE CONCENTRATE TO PURIFIED WATER RATIO
This procedure will assure you of maximum life and reliability of your SpectraPure System.
Failure to perform this procedure can permanently damage the membrane.
In order to maximize the life of your SpectraPure RO Membrane, you may need to adjust
the ratio of the concentrate to purified water. If not enough concentrate is allowed to flow
past the membrane during operation, the impurities will precipitate out on the membrane
surface, clogging the RO Membrane. To keep this from happening, the Concentrate to
Purified Water Ratio must be checked and adjusted in order to compensate for pressure
and temperature variations that exist in all water supplies. The flow rate of the concentrate
must be a minimum of 4X the product flow rate.
4X to 6X is an acceptable concentrate flow
rate.
PROCEDURE: (You will need a Stop Watch and Measuring Cup)
1.
Open the cold water supply valve and let the system run for 5 minutes. Direct
both tube down the drain.
2.
Collect product water from the blue tubing into a measuring cup for one minute.
Measure the collected amount in
milli-liters (236 mL = 1 cup)
. Do the same with
the waste water from the yellow line.
WASTE (YELLOW) IN MILILITERS______________
DIVIDED BY
PRODUCT (BLUE) IN MILILITERS______________
The resultant is the Concentrate to Product Ratio
(Although not needed in this proceedure, the daily product flow rate in Gallons per Day
(GPD) can be calculated to be equal to the product flow rate times 0.38 ).
3.
If your ratio is less than 4:1
Disconnect yellow drain line from the
membrane housing and then remove flow restrictor as shown on page 8-9
Use the appropriate Flow Restrictor Chart to determine how long to cut the
flow restrictor in order to obtain a 4:1 ratio. ( page 10)
4.
If ratio is greater than 6:1
, flow restrictor requires replacement (Please contact
SpectraPure Inc).
5. Turn on feed supply and check for leaks.
6. This completes the procedure.
NOTE: WHEN TESTING AND ADJUSTING THE RATIO THE WATER PRESSURE
SHOULD BE BETWEEN 40-80 PSI. IF YOUR PSI IS BELOW 40, YOU WILL
NEED A BOOSTER PUMP.
