 This has also led to the development of smaller rotary drum vacuum filters, ranging from laboratory scale to pilot scale, both of which can be used for smaller applications (such as at a lab in a university)  High performance capacity, optimised filtrate drainage with low flow resistance and minimal pressure loss are just a few of the benefits.With advanced control systems prompting automation, this has reduced the operation of attention needed hence, reducing the operational cost.Advancements in technology also means that precoat can be cut to 1/20th the thickness of human hair, thus making the use of precoat more efficient  Lowered operational and capital cost can also be achieved nowadays due to easier maintenance and cleaning.