Atmospheric Storage Tank Sanitization
Atmospheric tank needs to be sanitized before being used or any time there is a risk of contamination. Fill the tank
and add the volume of bleach indicated below. It is recommended to drain tank before using the water.
Tank Size
300 Gallons
550 Gallons
850 Gallons
1000 Gallons
Blending Valve Adjustment
This system is equipped with a blending valve that allows the
operator to blend filtered water into the RO product water
stream to achieve higher productivity and a specific TDS level
in the product water. The system was shipped with the blending
valve CLOSED to allow the system to produce very low TDS
water. For certain applications, you may choose to open the
blending valve to increase the TDS in the product water.
For best results, adjust the blending valve after the system has
been running for at least 1 minute and the pressurized bladder
tank is nearly full (if equipped). After the system has turned off
due to a full tank indication, dispense water until the system
starts up again, then stop dispensing water. Adjust the blending
valve while the tank is filling.
1.
Viewing the system from the front/top, turn the blending
valve counter-clockwise (CCW) to open valve and
increase TDS.
2.
Turn the blending valve clockwise (CW) to close the
valve and decrease TDS.
NOTE: There will be some delay in the TDS monitor response on the front panel. Observe the TDS for at least 15 seconds
before making any adjustments to the valve.
Turn the valve in small increments for the best accuracy. The number of turns required will vary with the TDS of the
incoming feed water and the desired product water TDS.
The TDS meter reads the TDS of the water as it comes out of the system. This may differ from the TDS in the tank or at
the dispensing faucet. It may take several startup/shutdown cycles for the tank/faucet TDS to normalize.
VIII. Maintenance
Maintenance Indicators and Recommended Schedule
Appropriate service procedures should be conducted immediately after notification. Additionally, an overall system
check is recommended on an annual basis in order to maintain optimal system performance and ensure longevity of the
entire water treatment installation.
Follow maintenance procedure on pages 13-15.
Schedule
Replace Filters
Every 6 months
Every 12 months
W-Series Owner's Manual
Volume of Bleach (5 1/4% Sodium Hypochlorite)
250 milliliters
450 milliliters
650 milliliters
770 milliliters
Replace Membranes
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Operating Conditions & Performance
• Check incoming feed pressure, temperature, hardness and
chlorine levels.
• Check system performance: pump pressure, production rate,
waste rate and TDS.
• Adjust blending valve, if necessary.
13
8 ounces
15 ounces
22 ounces
26 ounces
Blending Valve