The Sludge Judge from Nasco Whirl-Pak can be used to take accurate readings of settleable solids, 5 percent or less, in a variety of liquids to any depth. It is ideal for sewage treatment plants, chemical plants and food processing facilities where accurate sample levels of settleable solids in noncaustic materials are needed. The unit holds approximately 3 ounces per foot. It comes in 5-foot sections of 3/4-inch plastic pipe with screw-type connectors. 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 degrees F. 800/558-9595; www.enasco.com.
