blue clean light pool reflection refraction refresh sanitise sanitize serenity summer swim swimming water bucket cleaning cleanliness cleanness cleanup deterioration disinfect disinfection foot-pedal galvanised galvanized health hygiene hygienics maneuvrability manoeuvrability metal-mechanism mobility mop mop-bucket mop-pail mopping old roller-wringer-mop-bucket rust rusty sanitation sanitising sanitizing steel-wringing-system treatment washing wringer-mop-bucket