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AT-25STP-D

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Model AT-25STP-D
Model AT-25STP-D

Ahead Tank Type II Sewage Treatment Plants are IMO Certified and accepted worldwide in accordance with the latest and newest IMO Resolution MEPC.227 (64) to meet the more stringent operational requirements referred to in Regulation 9 of Annex IV of the International Convention for the Prevention of Pollution from Ships (MARPOL). Ahead Tank is also a USCG Certified Type II Marine Sanitation Device in compliance with USCG Title 33 CFR 159.015 Subpart C, 159.53 (b) Type II Device, 159.97 Inspected Vessels & 159.127 Safety Coliform Count: Recirculating Devices.

HOW IT WORKS

Ahead Tank is a Type II biological aerobic Sewage Treatment System that works with nature to accelerate the normal biological process. Additional oxygen is mixed with the sewage to germinate growth and multiply the naturally occurring bacteria. This action reduces the solids in the sewage. The bacteria uses the reduced particles as their food supply to digest the remaining  waste matter. A mild disinfectant solution is added to kill any harmful bacteria before discharging. The system has no internal moving parts that are affected by sewage.

DESIGN & CONSTRUCTION

Ahead Tank Type II biological (bacteria/air) Sewage Treatment Systems are constructed of a Durable, Lightweight & Corrosion Proof LLPE (polyethylene) material. AHEAD TANK is the FIRST & ONLY polyethylene Type II Sewage Treatment System constructed with the three necessary internal watertight chambers rotationally molded into the internal structure of a single Tank. This allows the Treatment Process to function equally or better than the traditional steel fabricated systems of today, with the added benefits of being Easier to Handle, a Smaller Footprint, Simpler to Install & Operate & at a fraction of the cost of a steel fabricated system.

FEATURES & BENEFITS

Meets USCG Certification and IMO Standards Worldwide

Lightweight

Durable / Reliable

Simple to Install

Odor Free Operation

Uses Fresh or Salt Water

Gravity Overboard Discharge

Compact / Small Footprint

Corrosion Proof

Easy to Operate

Low Maintenance

Chemical Resistant

No Internal pump necessary

AT-25STP-D MODELS & PERSON TREATMENT CAPACITY

AHEAD TANK
Model 
Flowrate
(gallons per day)
BOD (LBS) Bio Chemical
Oxygen Demand
Number of Persons
(per 24 hours)
Dimensions
Inches Length Width Height
Dry Weight
(lbs)
AHEAD TANK Disinfectant Type Operating Weight
(lbs) 
Coast Guard Approval Number
 AT-25STP-D  106 gallons 5.0 lbs 25 persons 88″ x 23 ” x 28″ 120 lbs Metering Pump 968 lbs 159.015/10176/0 

NOTE: TREATMENT CAPACITY OF THE AHEAD TANK IS EXPRESSED IN NUMBER OF PERSONS PER 24 HRS. WITH TOILETS THAT UTILIZE 1 GALLON OF EITHER FRESH OR SALT WATER PER FLUSH.

 is the #1 Choice of Marine Sanitation Devices in the #2 Business 

SIMPLE, RELIABLE, EFFICIENT & COST EFFECTIVE

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