West Best Wash Specialize’s In Frac Tank Cleaning & Oil Evac. Since 2014 West Best has provided the Permian Basin with one of the most dependable steam washing services in the area. We pride ourselves on turnaround time, to get our customers equipment cleaned and ready for the next job! Our services are not just limited to Frac Tanks, we also provide Rig & Fleet Washing, Radiator cleaning & also containment spill clean ups.