Several systems for treating {HEAD ~ high flow rates} and allowing such high flow rates to overflow/bypass {TAIL ~ the filter media} are described 
Several systems for treating { HEAD ~ high flow rates } and allowing such high flow rates to overflow / bypass { TAIL ~ the filter media } are described
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH