Abstract: A system for processing fluids is disclosed including a pump in fluid communication with a used fluid pit, a membrane separator in fluid communication with the used fluid pit, wherein an insert is disposed within the membrane separator, and a clean fluid pit in fluid communication with the membrane separator.

Abstract: An apparatus including a screen capable of separating solids from a liquid-solid mixture and a first probe disposed beneath the screen. The first probe is provided to determine a position of a beach between the liquid-solid mixture and separated solids. The apparatus may measure a property of a local volume of a probe disposed beneath a first separator deck. The probe may then send a first signal to database. Based on the signal a location of a beach may be determined.