AHEAD TANK Sewage Treatment Plant STP series are accepted worldwide in accordance with International Maritime Organization (IMO) Resolution MEPC .227 (64) to meet operational requirements referred to in regulation 9 of Annex IV of the International Convention for the Prevention of Pollution from Ships (MARPOL).
AHEAD TANK STP Series also complies with USCG Title 33 (CFR) 159. and (CFR) 1159.97 and may be installed aboard Inspected Vessels.


is the #1 Choice of Marine Sanitation Devices in the #2 Business
SIMPLE, RELIABLE, EFFICIENT & COST EFFECTIVE
HOW THE AHEAD TANK WORKS
is a biological aerobic (bacteria and air) Type II Marine Sanitation Device. Liquid and solid waste are removed from the water by bacteria naturally contained in sewage. The AHEAD TANK makes perfect environmental sense by working with nature to accelerate the normal biological process. With the addition of oxygen, the natural occurring bacteria breaks down and digest the solids. A mild disinfectant is added to kill any disease-causing bacteria prior to being discharged. AHEAD TANK has no moving parts that comes in contact with the sewage. This biological aerobic process is simple, effective, and ensures Reliable Odor Free Operation.