The Sludge Judge® is designed to take accurate readings of settleable solids, 5% or less, in a variety of liquids, to any depth. It is ideal for sewage treatment plants, chemical plants, and food processing facilities - anywhere that accurate sample levels of settleable solids in noncaustic materials are needed. The unit holds approximately 3 oz. per foot (89 ml per 0.31 m). The Sludge Judge® shippes in 3 five foot sections of ¾" plastic pipe with screw type fittings. The top section includes a nylon rope for raising and lowering the sampler. Individual sections can be combined as required to achieve the length needed. Do not use in liquids over 165° F (74° C). Sludge Judge® is not autoclavable. A convenient cotton canvas carrying case that holds four sections, a cleaning brush, cleaning rod and cotton strips is available.