We supply the Z17 Muscle Coalescer with a small submersible, centrifugal pump so it can fit into most machine sumps. It is pretty rugged for most applications, however, it is not designed to handle a lot of air intake. If reintroducing this pump to every machine every day, it may cavitate and burn out prematurely unless you keep it primed with fluid. It may also be time-consuming to reinstall the pump and intake attachment at each use point. So, labor costs are also a factor. Although the unit is available with a drum dolly, this dolly is only meant for ease of maneuverability when moving around your machine, such as during machine cleaning and recharge.