Hybrid Vacu-Cart being lowered alongside a vessel hull for in-water cleaning

The Machine

The Vacu-Cart

Clean · Capture · Reclaim · Filter · Treat · Monitor · Verify

Hybrid Vacu-Cart & Reclaim

Not just surface cleaning

The Hybrid Vacu-Cart & Reclaim Filtration System is an integrated in-water hull cleaning and biofouling management platform built for commercial vessels, ports, regulators and environmentally sensitive operations. It is engineered around a measurable chain of control that runs from hull contact all the way to treated discharge.

The real question is not only “can the hull be cleaned?” It is “what happens to the fouling once removed, and how is it environmentally compliant?” The Vacu-Cart is designed to answer both.

Integrated

Cleaning + capture + treatment in one system

Hybrid

Diver-operate + ROV means better coverage and more flexibility.

Verified

Independent EIA testing plus live monitoring

The Hybrid Advantage

One platform. Two operating modes.

Diver-operated mode is used when direct control is required around complex geometry, appendages, niche areas, heavy fouling or turbulent conditions.

ROV-operated mode suits broad, accessible open-hull areas where visibility, curvature and umbilical control allow stable operation.

Hybrid operation improves practical coverage across real vessel conditions instead of relying on one idealised cleaning mode. Real-world hulls are rarely limited to ideal open-hull geometry — ROV-only approaches leave the hardest, highest-risk areas untouched.

How It Works

Hull-Side, Treatment and Verification

Vacu-Cart cleaning a hull underwater at-port
01

Hull-Side

Diver-operated carts and ROV-operated modes work together to remove macrofouling and microfouling from the hull surface. The cleaning interface captures biofouling at source, preventing release into the water column.

Industrial filtration and sterilization system
02

Treatment

Captured material is transferred to the surface reclaim unit where solids are separated and the water stream passes through staged filtration and UV treatment. Copper, zinc and other coating residues are captured, and biological treatment neutralizes invasive species without chemicals.

Side-by-side comparison of captured biofouling solids and the filtered clear liquid
03

Verification

Operational parameters, turbidity, water quality and system status are observed and logged in real time. Time-stamped records, alarms and interlocks provide documented evidence for permit applications, port review and compliance reporting.

The Environmental Control Chain

Eight monitored, reviewable stages

Phase 01

Hull-side

01

Removal

Controlled mechanical removal of fouling from the hull surface.

02

Capture at Source

Removed fouling is captured at the cleaning interface, not released.

03

Reclaim Transfer

The recovered stream moves through reclaim hose to surface filtration.

Phase 02

Treatment

04

Solids Separation

Micro and macrofouling solids are separated out of the water.

05

Staged Filtration

Progressive filtration reduces suspended solids and particulates.

Including capture of copper/zinc and other metal and coating residues.

06

UV Treatment

Filtered water receives an additional biological treatment stage.

UV exposure kills and neutralizes the DNA of invasive species so there is no chance of contamination.

Phase 03

Verification

07

Live Monitoring

Operational and water-quality parameters are observed during cleaning.

08

Controlled Discharge

Discharge occurs only after passing through the full treatment process.

This is the difference between a conventional cleaning process and an accountable environmental process.

Heavy barnacle and macrofouling growth on a vessel hull before cleaning
Clean — controlled mechanical removal of hard fouling at the hull.
Close-up of the Vacu-Cart capture head and reclaim connections
Capture — fouling is drawn into the reclaim stream at source.
Surface reclaim unit separating captured biofouling solids
Reclaim — solids separated, contained and handled ashore.

Live Monitoring & Verification

Every operation is observed, logged and reviewable

Multiparameter water quality meter and control cabinet on the surface reclaim skid

Turbidity, water-quality parameters, pressure differential and overall system status are observed in real time. PLC/HMI control, alarms, interlocks and time-stamped logs make every operation reviewable — supporting permit applications, port review and compliance reporting.

Independent environmental impact assessment testing, combined with live operational data, means the result is not only a clean hull but documented evidence of how it was achieved.

See It in Action

The Vacu‑Cart & Reclaim System

Hull Optimization

In-Water Cleaning & Capture

"Clean hull. Controlled process. Verified performance."