I have a Mytee M5 portable and have run 75ft of house and still have good suction, if i were to run more than that i think i would use my vacuum booster-I'd like to leave machine outside of house and can use the auto pump out no problem but as far as filling the fresh water tank and using the auto fill i'd like to have like a 40gal fresh water tank inside my van, so how, if possible do i set that up so the water from 40gal tank feeds into fresh water tank on my porty