The POLYCAST® 3000 Series is a high capacity drain system designed for airports, roadways and other applications needing especially high flow volume. POLYCAST 3000 can achieve flow rates of more 3000 GPM (gallons per minute) or 6.73 cfs (cubic feet per second).
Channels are pultruded fiberglass and are available in polyester resin or in Vinyl Ester resin for exceptionally high chemical resistence. The strong vertical sidewalls reduce sidewall deflection during the concrete pour and therefore maintain maximum flow capacity. The sidewalls of many other drain systems tend to collapse during this critical process, resulting in substantially reduced flows.