For the money this pump does the trick at moving used oils. It has the ability to move some of the trash that collects on the bottom of the tanks but slows it's cycling when it's really thick and gross.
My unit has a smallish leak on one side of the output leg and the bolts are tight. Not sure what the deal is there.
I've used it about 8x now and have moved about 375gallons of varied used oils. One batch has a lot of debris in the tank and was the main purpose for buying this unit.
Be nice if the manual was a little clearer on English.