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Page 12www.123filter.com | (678) 261-7611 | Support@123Filter.com
Step 8: System Start Up (model specific sub-steps are marked with a *)
* If your model has a UV stage, do not plug in the power until the system has been fully flushed
8.1 Make sure no tubings are kinked. Turn the Tank Shut-off Valve OFF (perpendicular to the
yellow tube). Place a towel under the system to catch any possible water leaks.
8.2 To prevent any residual carbon from the carbon pre filters from getting into the RO membrane, you
previously left the tubing to the inlet of the RO membrane housing cap disconnected. Open the
Feed Water Adapter Valve and Cold Water Supply Valve (CWSV), and flush the first three stages
into a bucket until the water turns clear.
8.3 Once the water is clear, shut off the Feed Water Adapter and re-connect the tubing to the RO
membrane housing cap. You will want to flush the system like this whenever the first three stages
are changed.
8.4 Open the RO faucet. Slowly open the Feed Water Adapter back up and check for any leaks.
The top 3 causes of leaks are 1) The tubing is not fully inserted into the quick-connect fitting. 2)
The O-ring is not in the correct place or is kinked. 3) The Housing/Cap is not tightened properly or
misaligned with the threads.
8.5 Within 5 minutes, RO water will start slowly trickling from the faucet. Let the faucet trickle for at
least 15 minutes to flush out the entire system apart from the tank. The water may appear black due
to loose carbon from new carbon filters. It will eventually turn clear apart from many tiny air
bubbles leaving the system.
8.6 Shut off the RO Drinking Faucet. Turn on the Tank Shut-off Valve. Wait for the tank to fill up
completely. It will take 1.5 to 2.5 hours depending on your water temperature (40F-100F, the
warmer the faster), water TDS (up to 750, the lower the faster), and incoming water psi (45-70, the
higher the faster).
8.7 After the tank is full, open the RO Drinking Faucet to drain the tank completely. Do not use the
first tank of water. Let it drain into the sink until the stream turns back to a trickle - this means the
tank has emptied and you can close the RO faucet to let it begin filling again.
8.8 * If your system has a UV filter, plug in the UV power and check to make sure the UV light is
turning on when water flows through it. The UV filter has a Flow Sensor Switch that detects water
flow and only turns the light on when needed. If the UV is not turning on when water flows through,
confirm the power source you are using has power. Typically the garbage disposal outlet only has
power when the disposal is switched on.
8.9 The TDS (total dissolved solids) of the water should be tested periodically to verify that the system
is performing properly.
8.10 Check for leaks daily for the first two weeks after installation to ensure the system is functioning
properly. Install the included Flood Alarm to provide additional peace of mind and protection.
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