This sampling device enables you to take accurate readings of settled solids in a variety of liquids, to any depth. The Sludge Judge® is ideal for sewage treatment plants, chemical plants, food processing facilities - anywhere that accurate sample levels of settled solids in non caustic materials are needed. The unit holds approximately 3 oz per foot. The Sludge Judge® comes in 5 ft sections of 3⁄4" plastic pipe with screw-type fittings. The top section includes a nylon line for raising and lowering the sampler. A convenient cotton canvas carrying case that holds four sections, a cleaning brush, cleaning rod and cotton strips are available. Individual sections can be combined as required.