Sepa is the pre-eminent name in dissolved air flotation (DAF) & oily water separation + Industrial waste water treatment. Sepa DAF units have successfully been treating water or effluent across a range of applications from drinking water to industrial effluent for over 20 years. Sepa NZ Ltd is a wholly NZ owned and operation company supplying to the New Zealand market DAF units designed and manufactured by Sepa Water Australia.