Sewage Treatment Systems

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Marine Sanitation Device MSD Series

AHEAD TANK Type II Marine Sanitation Devices are United States Coast Guard Certified in accordance with USCG Title 33 Code of Federal Regulations (CFR) 159 and complies with USCG Title 33 CFR 159.97 and may be installed aboard inspected vessels.

Sewage Treatment Plant STP Series

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.

U.S.C.G Certified Marine Sanitation Device

MSD Model  Number of People ( 24 hours) Disinfection System Flowrate (gal. per day) USCG Approval No.
AT-6T 6 Tablet 56 gallons 159.015/9971/0
AT-12T 12 Tablet 88 gallons 159.015/9972/0
AT-16T 16 Chlorine Solution 88 gallons 159.015/9973/0
AT-20T 20 Chlorine Solution 110 gallons 159.015/9974/0

U.S.C.G Certified & IMO Approved Sewage Treatment Plant

STP Model  Number of People (24 hours) Disinfection System Flowrate (gal. per day) USCG Approval No.
AT-10STP 10 Tablet 56 gallons 159.015/10175/0
AT-10STP-D 10  Chlorine Solution  56 gallons 159.015/10175/0
AT-18STP 18 Tablet 88 gallons 159.015/10175/0
AT-25-STP-D 25  Chlorine Solution 88 gallons 159.015/10176/0
AT-35-STP-D 35  Chlorine Solution 110 gallons 159.015/10176/0