WL2FLT
Manual Page 58
–
Revision 10-26-2021
19.
RO system continuously run, non-stop flow from drain line
Solution
Water Feed Pressure Too Low
If the source water pressure being fed to the machine is too low, the
High Pressure Switch will never be engaged, and the RO system will
continually run, causing constant water flow to drain. Consider
installing a booster pump to push the incoming feed pressure closer
to 40psi.
Membrane Flush Valve is Open Close the Membrane Flush Valve
High Pressure Switch Failure
Inspect the High Pressure Switch and ensure it is working properly.
Replace as needed.
