hi, i hav been using my portables as truckmounts for over 5 years u must hav a baffled water tank,i hav a 250 lt which fills my ninja about 12 times ,i hav auto fill on it ,and fill using a 12volt pump contected to my batt on van,i run over 100ft of hoses with no probs and my machine leads are 50ft , u need a least 250 psi pump,i myself use 400 psi pumps and ideally a auto waste on machine as i hav but its not a prob cause when u machine is full u vacs cut out ,
i paid £300 for my tank and pump from firm in ireland
gary
p.s get a flat tank not upright one