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FPPE Overview: Most Common Problems to Avoid. DEP has been conducting Filter Plant Performance Evaluations since 1998 After over 1,000 evaluations, DEP compiled a list of the 12 most common causes of poor filter plant performance seen in PA
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FPPE Overview: Most Common Problems to Avoid • DEP has been conducting Filter Plant Performance Evaluations since 1998 • After over 1,000 evaluations, DEP compiled a list of the 12 most common causes of poor filter plant performance seen in PA • Avoiding these potential problems may help improve overall filter plant performance…
Top 12 Causes of Poor Filter Plant Performance in PA - AKA “Dirty Dozen” High settled/applied water turbidities Inadequate process monitoring at critical locations Lack of interpretation of filter profile data Inadequate % bed expansions Improper backwash procedures Hydraulic surges
Top 12 Causes of Poor Filter Plant Performance in PA - AKA “Dirty Dozen” 7. Start/Stop mode of operation 8. Excessive filter run times 9. Fully automated backwashes 10. Return to service too quickly after backwashing 11. Lack of properly trained and certified operators 12. Lack of instrumentation calibration, cleaning and preventative maintenance
