Clean-Exhaust System

clean-exhaust Marine Diesel System

The clean-exhaust system is a marine diesel exhaust-treatment system for vessels using gas/water separator mufflers. Its purpose is to reduce the soot and particulate residue commonly seen on hull sides, boot tops and surrounding water when diesel generators or main engines discharge through wet-exhaust systems.

Key Features & Technical Information

• Designed for generators and main engines with water-separator mufflers
• Purpose-built dosing pump automatically meters ecoBrew™
• ecoBrew™ is introduced into the raw-water cooling/exhaust stream before the spray ring
• Targets soot, particulate and products of incomplete combustion
• Designed to create no engine back pressure
• Designed to add no engine-room heat
• Can reduce black/grey hull residue and floating oily sludge
• Manufacturer recommends cleaning existing exhaust piping and muffler before or during initial installation
• ecoBrew™ ingredients are stated by the manufacturer to meet US EPA Safer Choice criteria
• Manufacturer states ecoBrew™ is MARPOL approved for the described marine use

Models, Capacity & Selection

Installation is vessel-specific because dosing equipment, electronics and the ecoBrew™ storage tank can be arranged remotely to suit engine-room space. System suitability should be assessed against the engine/generator exhaust configuration before ordering.

Why This Matters Onboard

For yacht engineering teams, the practical benefit is reduced soot deposition around the waterline and exhaust outlet, which can reduce repetitive hull cleaning associated with wet diesel exhaust. It is not a replacement for correct engine maintenance or combustion diagnosis.

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Frequently Asked Questions

Where must the clean-exhaust dosing connection be installed?

The manufacturer places the injection nozzle in the raw-water cooling line between the engine outlet and the exhaust spray ring or spray nozzle. Installation therefore requires access to that section of the cooling/exhaust system.

What installation work is excluded from the clean-exhaust equipment package?

The manufacturer excludes routing the supplied 25-foot, 1/4-inch-ID hose to the injection point, the connection fitting, and the electrical hookup. Confirm those items in the installation quote.

Do I need to clean an existing exhaust system before adding clean-exhaust?

The manufacturer strongly recommends cleaning the existing exhaust piping and muffler before installation. That cleaning is not included in its stated equipment price.

Can one clean-exhaust stand serve more than one generator system?

The manufacturer allows up to two additional systems per stand, for three systems total. Each additional system is specified separately; one dosing system should not be assumed to cover multiple engines.