Measuring Product To Waste Ratio - SpectraPure The Eliminator Operator's Manual

SpectraPure
MEASURING WASTE TO PRODUCT 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 and will void
the pro-rated Membrane Warranty.
In order to maximize the life of your SpectraPure RO Membrane, a minimum waste-to-prod-
uct ratio of 3-to-1 (3:1) is required. Depending upon your particular tap water pressure and
temperature, you may need to adjust the ratio of the concentrate (waste) 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. The flow rate of
the concentrate must be a minimum of 3X the product flow rate. 3:1 to 5:1 is an acceptable
ratio.
Procedure:
1. Locate the Yellow waste line. Direct the waste line into a sink drain.
2. Locate the Blue product line. Direct the product line into a sink drain.
3. Turn on the Feed Supply Valve and let the system run for 20 min.
4. Collect product water from the blue line into a measuring cup (marked in
milli-liters) for one minute. Measure the collected amount in milli-liters.
Do the same with the waste water.
The resultant is the Concentrate to Product Ratio
(Although not needed in this procedure, the daily product flow rate in Gallons per
Day (GPD) can be calculated to be equal to the product flow rate times 0.38 ).
5. If ratio is less than 3:1, Remove Flow Restrictor as shown on page 12-13
and cut 1 inch off the end of the Flow Restrictor (FR).
6. Re-measure your ratio and repeat proceedure untill you acheive a 3:1 ratio.
7. If ratio is greater than 5:1, you will need to further restrict the waste water.
You may contact SpectraPure Inc for a smaller FR, or, get a small 1/4" Ball Valve
from a hardware store. Cut the yellow waste line about 18 inches from the
Membrane Housing and then re-connect the two cut ends with the Ball
Valve. You can then continue to reduce the waste water with the Ball Valve
until you achieve the proper ratio.
Note: our New 100 GPD Membranes have Replaced the
SpectraPure®Inc .
E-mail: spectra@spectrapure.com Visit us on the web www.spectrapure.com
WASTE IN MILLILITERS______________ML
DIVIDED BY
PRODUCT IN MILLILITERS______________ML
90 GPD Encapsulated Membranes
Fax 480.894.6109 Fax us toll-free 1.877.527.7873
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