The ACU-GATE Flushing Gate System from Grande Water Management 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, as well as sewer inverts, using a single flush. It has been used in CSO, 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 in-system water stored behind the flushing gate. 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 ACU-SCREEN Fine Slotted Overflow Screen System from Grande Water Management is designed to remove debris from storm water overflow systems, combined sewer overflow (CSO) systems and sanitary sewer overflow (SSO) systems. The ACU-SCREEN fine slotted screen provides an economic and effective solution to protect against floating and suspended matter entering receiving streams.​

Grande Water Management Systems offers a variety of flow regulators which are designed to passively maintain a fixed flow through them under varying upstream head conditions using the principles of physics and mechanics.

 The uses of these vary widely, but most often they are used to control flows in combined sewer systems (CSO), sanitary sewer systems (SSO) and effluent from batch process plants. These regulators can be designed to maintain flows up to 32,000 GPM with upstream water level up to 40 feet.

Bending Weirs are designed to maintain maximum water storage levels upstream of the weir, thus allowing full usage of all the available upstream storage volume and limiting the amount of CSO over the weir to the fullest extent possible.

The ACU-TIP tipping bucket from Grande Water Management is a sediment flushing system designed to remove settled debris from reservoir floors, such as stormwater or CSO retention tanks and sanitary equalization tanks. The system operates by releasing a torrent of fresh water stored in the tipping bucket. The resulting flushing wave progresses down the entire length of the flushway pushing the settled debris ahead of it. The re-suspended debris is then carried by the flush water to the treatment plant for disposal.