流水不腐

flowing water does not rot

to flow / to disseminate / to circulate or spread / to move or drift / to degenerate / to banish or send into exile / stream of water or sth resembling one / class, rate or grade

running water / (business) turnover

surname Shui

water / river / liquid / beverage / additional charges or income / (of clothes) classifier for number of washes

no; not so / (bound form) not; un-

decay / rotten

lit. flowing water does not rot, nor a door-hinge rust (idiom) / fig. constant activity prevents decay