The Five Star "Upflow" Sand Filter has been designed with one thing in mind - "performance". In virtually every application that involves granular media filtration, the "UpFlow" gravity sand filter is the BEST choice for the removal of suspended and colloidal solids. Designed as an upflow dynamic bed filter; the "UpFlow" provides a continuous supply of filtered water without interruptions for backwash cleaning cycles.

Superior, Consistent Performance
The combination of the upflow water and the deep bed enables the "UpFlow" filter to offer the best performance available in upflow filter designs. High quality filtrate can be achieved at varying flow rates depending on influent feed solids loading.

Low Pressure Drop
Upflow filter designs typically require two to three feet of driving head upstream of the filter. This design allows the majority of the captured solids to remain in the lower portion of the filter bed and removed from the filter very quickly. Consistent low headloss is normal for the "UpFlow". A continuously cleaning washbox utilizes filtered water to clean the media before it returns to the top of the filter bed. One meter and two meter filter beds are available with very little difference in head loss.

Low O & M Costs
Operation and maintenance costs are minimized. The "UpFlow" filter has NO moving parts in the filter. there are NO screens, level controllers or valves to maintain. The only air requirement is the airlift pump. The air consumption typically ranges from 1 to 4 scfm at 40 psi per airlift. Scheduled operator attention and service is all that is required.

High Quality Construction
The "UpFlow" meets the strictest construction requirements in the industry. Standard tank materials are FRP (fiberglass reinforced plastics). Alternative materials available are carbon steel with superior protective coating systems, as well as stainless steel (Type 304, 304L, 316, 316L). Heat tracing and insulated tanks are available for outdoor application in cold climates along with Seismic 4 designed tanks. Concrete basin designs are available for higher flow applications with the concrete being provided by others and all internals provided by Five Star Filtration, LLC.

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