βορβόρῳ δ' ὕδωρ λαμπρὸν μιαίνων οὔποθ' εὑρήσεις ποτόν → once limpid waters are stained with mud, you'll never find a drink
πλυντική: ἡ (sc. τέχνη) искусство стирки Plat.
(see also: πλυντικός) art of washing