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| − | Pretreatment devices are often constructed in close association association with one or more [[inlets]]. Different configurations of each exist to accommodate any design. | + | [[File:Oil-grit separator USGS 2002.png|thumb|Oil-grit separator USGS 2002 (Wikimedia commons)]] | 
|  | + | Pretreatment devices may be constructed in close association association with one or more [[inlets]]. Different configurations of each exist to accommodate any design. | 
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