18
Reverse Osmosis Water Treatment System
Copyright © Puretec Pty Ltd 2020
Troubleshooting
Issue
Possible Cause
Corrective Action
Low product flow rate
Low driving pressure.
Increase feed pressure. Consider
pump for low pressure locations. Use
short tubing runs to decrease flow
restriction. Increase tubing diameter
for
longer distances.
Low water temperature or high total
dissolved solids (TDS).
Increase feed water temperature or
feed pressure to compensate.
Plugged prefilter.
Replace plugged prefilter. Consider
sediment prefilter for non-chlorinated
applications.
Scaled or fouled RO membrane.
Replace membranes.
Faucets not adjusted properly.
Adjust faucet t-bar setting as tight
as possible without causing leaks
from the faucet.
Plugged post filter.
If flow into the post filter is
acceptable, replace post filter.
Leak or kink in product line.
Find and repair leak or kink.
Concentrate water runs
to drain after faucet
shut off
Plugged prefilter
Plugged prefilter Replace plugged
prefilter. Consider sediment prefilter
for non-chlorinated applications.
Leak in product line.
Find and repair leak. Install pressure
gauge in product line to help identify
a product pressure leak.
Poor product water
quality
Water sample taken during system
flush.
Take sample after three minutes of
continuous operation.
Low driving pressure.
Increase feed pressure. Consider
pump for low pressure locations. Use
short tubing runs to decrease flow
restriction. Increase tubing diameter
for longer distances.
Plugged prefilter.
Replace plugged prefilter. Consider
sediment prefilter for non-chlorinated
applications.
Scaled, fouled, or damaged RO
membrane.
Replace RO membranes.
Troubleshooting
