The ACU-DRUM Pivoting Drum System is a sediment flushing device designed to remove settled debris from storm water detention tanks, combined sewer overflow (CSO) retention tanks, sanitary sewer overflow (SSO) equalization tanks and reservoir floors, using a single flush. It has been used in CSO and SSO applications and can be used in agricultural and industrial applications to clean any batch process tank, reservoir or basin.
The system operates by releasing a torrent of water stored in the pivoting drum. The resulting flushing wave progresses down the entire length of the flush way, pushing the settled debris ahead of it. The re-suspended debris is then carried by the flush water to the treatment plant for disposal.
The pivoting drum system has several advantages over other types of sediment flushing devices. Although similar to the ACU-TIP tipping bucket in design, the ACU-DRUM pivoting drum differs in that it is designed to use in-situ water for flushing. This sediment flushing device is installed at the tank’s floor level. The only mechanical components of the system consist of two permanently lubricated end bearings and the release mechanism. Therefore, the need for maintenance is reduced, assuring an economic and trouble free operation. The ACU-DRUM pivoting drum can be installed in new tanks or easily retrofitted into existing installations. The following components are included in the ACU-DRUM Pivoting Drum System: the pivoting drum, the supports, the bearings, the anchoring system, the float and the release mechanism.
