I am a little confuse by the Type of water filter needed for pressure washers. Are we talking screens ? Or an actual filter ? And if so what type ? I have recently purchased a Landa PGHW5-35321E along with the 325gal tank( I know too small but need to keep the weight down) and am installing both in the truck this weekend, God willing and my girlfriend dosnt gripe too much. Scot says.......2" line from the tank too the PW...is this really needed or is this over kill ? Rick