SEWAGE TREATMENT PLANT

One (1) pcs sewage water treatment system, including tank and macerator vacuum pumps, shall be installed for a maximum load of 26 pax. Black and Grey Water collection shall have separate vacuum systems. The Grey Water shall be collected through a venturi and collection tank, with two vacuum centrifugal pumps and two macerator discharge pumps. Drains from the laundry and galley shall be via gravity drain direct to the grey water collection tank. A grease trap shall be provided for all galley drains and shall be arranged for ease of emptying. The Grey Water discharge shall go to either the last 'Chlorine stage' of the sewage plant or to the Sewage holding tank and have the option of being diverted directly overboard.