Hi guys how is this done? How does it stay in place if using a wheelie bin for example? I've bought a Loncin 14hp 21litre a minute second hand and need to know how to stop the buffer tank overflowing? So I'll be filling the tank with half inch hose, what do I need on the end? What type of ball **** etc? And how does it stay In place... Sorry, I'm a total newbie to pressure washing guys!