Hey everyone I am needing some help. I picked up an AlH4240 with Cat pump for a solid price. I am putting together a trailer but am unsure if I need to run a buffer tank. I plan to have 150 ft of both Waterhouse and pressure hose. The unit is obviously direct drive and please don't tell me to return and reinvest as it's to late for that. My question is if I do require a buffer tank, how far above the pump inlet would I need to mount the tank on the trailer. The machine is. 4gpm and I am looking at a 65 gallon tank with a 2 inch outlet. Images of setups ect. Would be extremely helpful as there are not many online