Pit Volume Totalizer : A device that combines all of the individual pit volume indicators (refer to Par. 12.42) and registers the total drilling fluid volume in the various tanks. (RP 53)
The Mudblogger (Oilfield, Energy and Related Photographs), Oil Field Glossary, TX, USA 2014. http://mudblogger.com/oilfield-glossary/, (Oil - Amer) {777}