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Table 1

Recommended flow rate reduction thresholds for debris build-up alerts

Mean measured percentage reduction from Qbaseline for all sand sizes (%) at:Recommended percentage reduction threshold for predictive cleaning alert, based on a longitudinal average
Gauze pore size (mm213 ga 16 g 22 g (Recommendations in italics disregard ‘false alerts’) 
0.05 96.31 93.04 84.37 > 9% (>9%) 
0.36 97.94 94.65 84.50 > 7% (>7%) 
0.42 98.35 97.11 90.92 > 5% (>4%) 
1.38 99.59 97.96 94.70 > 5% (>3%) 
1.95 98.79 97.97 95.76 > 5% (>3%) 
3.24 99.18 99.18 96.35 > 5% (>2%) 
Mean measured percentage reduction from Qbaseline for all sand sizes (%) at:Recommended percentage reduction threshold for predictive cleaning alert, based on a longitudinal average
Gauze pore size (mm213 ga 16 g 22 g (Recommendations in italics disregard ‘false alerts’) 
0.05 96.31 93.04 84.37 > 9% (>9%) 
0.36 97.94 94.65 84.50 > 7% (>7%) 
0.42 98.35 97.11 90.92 > 5% (>4%) 
1.38 99.59 97.96 94.70 > 5% (>3%) 
1.95 98.79 97.97 95.76 > 5% (>3%) 
3.24 99.18 99.18 96.35 > 5% (>2%) 

ay-strainer filling threshold.

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