The mud balance and marsh funnel viscometer provide easy and accurate ways of testing mud flow density.  The mud balance is durable, which makes it ideal for field use.  The high impact case protects the balance during transport while providing a secure base for it during use.  The marsh funnel viscometer is easy to operate and makes rapid, on the spot measurements of drilling mud viscosity.  The funnel reads only in general measurements, but the frequent reporting of the viscosity alerts the mud engineer to sudden changes in the mud viscosity that could require corrective action.  A 1-liter plastic measuring cup is also available for collecting the sample from the funnel.