The BAT Media Cleaning Tool from Jet Inc. allows efficient compressed air delivery below the effluent surface, while service technicians remain above grade. The original swivel design can be used with readily available, off-the-shelf air pumps, vacuum trucks or the Jet Catalog compressor. Proper service removes accumulated solids with course bubbles, without a washing wand or harsh chemicals. The biologically treated solids then settle in the aeration chamber to reveal more BAT Media surface area for a new biological colony to form. 800/321-6960; www.jetincorp.com.