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
7
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 Warranty.
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
3X the product flow rate. 3X to 5X 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 tubes down the drain.
2. Collect product water from the blue tubing into a measuring cup for one
minute Measure the collected amount in milliliters (236 ml = 1 cup). Do the
same with the waste water from the yellow tubing.
WASTE (YELLOW) IN MILLILITERS______________
DIVIDED BY
PRODUCT (BLUE) IN MILLILITERS______________
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 ).
3.
If ratio is less than 3:1
Disconnect yellow drain line from the membrane housing and remove flow
restrictor as shown on pages 10-11. Use the appropriate Waste to Product ratio
chart (Fig D on page 12) to determine how long to cut the flow restrictor in
order to obtain a 3:1 to 4:1 ratio.
4.
If ratio is greater than 6:1
An additional flow rectriction is required. (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
MIGHT BENEFIT FROM A BOOSTER PUMP.
