WaterLogic WL400 Base Cabinet, Manual

Page: 44 / 84

WL400 Manual Page 44 – Revision: 10-23-2019
RO SETUP AND FILTER CHANGE
1. Remove Front Panel from Base Cabinet
2. Isolate Water Supply
3. Remove Pre-Carbon and Post-Carbon Filters and clear carbon fines by flushing 5 gallons on
water through each filter individually to drain.
4. Reinstall Pre-Carbon and Post-Carbon filters.
5. Close RO bypass valve and bladder tank valve (See photo above)
6. Flush RO Membrane to drain for a minimum of 4 hours or until TDS reduction is at desired
level (>90%). Water should be draining from both the water out line and drain line.
7. Open Bladder Tank Valve and turn on water supply. Ensure RO bypass valve stays in the
Closed Position.
8. Allow up to 1 hour for empty bladder tank to fill if necessary.