Drilling waste is unavoidable consequence during drilling operations. If the drilling fluid does not carry cuttings and cavings to the surface, the rig either is not “making hole” or soon will be stuck in the hole it is making. The drill ing waste that are separated from the drilling fluid on the surface by the s olids control equipment and some quantity of unrecoverable or economically unwanted drilling fluid are a major source of drilling waste. Drilled and formation solids that are sized smaller than can be removed by s olids control equipment are often reported as drill solids. Some quantity of drill solids will accumulate in the drilling fluid and must be removed by the s olids control equipment or reduced in concentration by dilution . Before the introduction of mechanical solids removal equipment, dilution was used to control solids content in the drilling waste management . The typical dilution procedure calls for dumping a portion of the active drilling