CWS Plus Birm Filter Installation & Startup Guide
Page 13
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Rev 101813
Troubleshooting the CWS Plus Birm Filter
One problem that may occur is if you do not have enough backwash flow rate to properly clean the Birm
filter. You can verify the backwash flow rate by running the drain line into a bucket and timing it when
the CWS Plus is in Cycle 1 or backwash. A 1.0 or 1.5 cubic foot system should have 5 gallons per minute
and a 2.5 cubic foot system should have 10 gallons per minute of backwash.
In some cases, the CWS165 may not be programmed correctly. See the CWS165 service manual for
instructions on how to access the master programming.
