The original WeirWasher Automated Cleaning System for cleaning clarifiers and thickener tanks. Eco-Blaster, BCS for foam and floating material control on tanks and troughs. Weir Rover as well as Belt Blaster for fabric thickener machines and all other material control processes using liquid.

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WeirWasher Automated Cleaning Systems (ACS) removes Algae, Grease, Debris, Scum, Foam, Sludge, and other materials from WasteWater Treatment Plant (WWTP) clarifier weirs and troughs. Eco-Blaster, Biological Control Systems (BCS) is used to control foam and material on tanks and clean screens and belt presses to name a few applications. Weir Rover cleans "Chain & Flight" clarifiers or any other straight trough arrangements. Belt Blaster is for Belt/fabric gravity and press thickening machines.

Our original designs were installed in 1994 and have been operating ever since. Through many years of research, development and testing, we have refined our products to their current state.

Thank you for your interest in WeirWasher ACS, and we look forward to installing a WeirWasher in the near future at your facilities.

Brent R. Gill
CEO, President & Board Director Inc.

Dorian Drake


"Improve safety, reduce maintenance costs, and optimize treatment equipment operation with automation! Grease, Algae, Debris, Scum, Foam, Sludge and other materials can accumulate, diminishing equipment function and requiring regular cleaning maintenance that is both time consuming and hazardous. Automated Cleaning and Control Systems can address the collection areas of the unwanted material with the use of water. These debris control methods use less water and energy, require less maintenance time, and do not use chemicals."

Crane Engineering


"Engineers at Crane proposed the use of a Weir Washer automated cleaning system that would use available non-potable plant water to remove the algae, and other debris, from the surfaces on the clarifier. The other firm provided no solution, siting they didn't believe there was an automatic system that would work as effectively as a manual cleaning."

Crane Engineering


"Cleaning the clarifier has drastically changed at the Wolf Treatment Plant. It takes about 15 minutes for operators to connect the hose from a yard hydrant to the Weir Washer piping. It operates 2-3 days per week, and allows Hartmann to structure his employees’ time differently so they can take care of small projects they would have been de-prioritized in the past.

Hartmann claims that the Weir Washer systems have not only helped make the plant a safer place to work, but they’ve also helped their plant achieve more consistent operation and reduce maintenance. “There’s no good, safe, manual way to clean a clarifier. If you’re looking to keep operators safe, this is a tool that can eliminate the stress and strain involved,” said Hartmann."

Treatment Plant Operator


"The automated cleaning system is a non-contact cleaning approach using non-potable plant water to form a rotational spray. The waterjet action allows uneven and porous surfaces to be cleaned while minimizing the amount of water used."

"...the spray cleaning is a viable and effective process to control or eliminate attached algal growth in secondary clarifiers. It also appears to be effective in snail population control in UV disinfection chambers, and in greatly reducing staff maintenance time in facilities with UV disinfection."

Water World

Environmental Expert (1)

Environmental Expert (2)

Water & Wastes Digest

Wastewater Press Releases