Sludge Control Equipment includes Model 602 sludge blanket level meter that is used to find the sludge level in water and wastewater clarifiers, lamellas, settling tanks or any industrial process settling solids. The meter can be used to just read the sludge level or it can control the sludge level automatically, model 10 sludge gun is a portable sludge blanket level detector that finds the sludge bed in ponds, clarifiers, lagoons, septic tanks or any other tanks where a sludge bed is forming, model 502 suspended solids meter measures suspended solids in wastewater and industrial processes using ultrasound. The meter reads concentrations and suspended solids that are too thick for optical turbidity meters and the Duckbill Sampling System is an automatic wastewater sampler used to collect composite samples in water and wastewater. The sampler is intrinsically safe. It can lift samples 60 feet and move them horizontally 100 feet.