There are times where the need for a mobile oil water separation system is needed. 

These include when storage tanks are in need of cleaning, or when there is a spill response effort in a tank, sump, or other area with water that needs immediate mobilisation. In these cases there is water being used to clean or flush out a vessel or area, and the resulting wastewater needs to go through a separation process before it can be hauled away. 

The flexibility of being able to move a treatment system from location to location in a residential situation is very useful. It is also far more economical to take care of the clean-up or treatment needs onsite, instead of having to ship the contaminated wastewater to a third party facility. In some instances these facilities are some distance away.