This machine is the BEST way to dig in areas where there may be pipe, wire, or anything else that could be damaged from digging! The long hoses also allow access to hard to reach areas where even hand digging could be difficult! This trailer is a perfect balance, with a 500 gallon waste tank and a 60hp power unit it is much more powerful than most systems with this size tank but it is still light enough to be towed behind most pickup trucks. The high power allows for much faster excavation and longer hoses for better access. The pressure washer pump is also much more powerful than most. The power unit runs on diesel and includes a high volume vacuum pump and high pressure/volume pressure washer. The trailer weighs 6000lbs empty and up to 11000 full but can of course not be filled all the way if required for hauling. The hitch is 2-5/16 ball.