Hi all. I have a trolley system I knocked up myself and it works great. Am now setting up my own van system. I have ordered 100metres of hose 6mm inner diameter. I currently have an 80psi pump (works great thru 10 meters of hose), will that be enough to pump thru 100 metres of hose. Might cut in half and keep 50m at home for when the other half is knackered out. What psi would you folks recomend for both 50m and 100m. I pre filter my water, so will pump straight from the tank in my van and up the pole, without passing thru any DI vessels or RO units. Any input would be highly appreciated. Thankyou