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International Paint Intersleek Underwater Cleaning Equipment Evaluation

GRD Franmarine Underwater Services has successfully completed International Paint’s Intersleek underwater cleaning panel tests using the following equipment and set-up parameters for removal of loosely adhered hard fouling, slime and weed. Fouled panels coated with the Intersleek scheme were immersed for 4 months before cleaning using the Envirocart. No damage that could be attributed to the cleaning equipment could be seen either visually or under microscopic analysis.

International Paint recommends that the vessel operator using this cleaning company checks that the correct equipment and suitably trained personnel are provided.

Yours faithfully,
For and on behalf of International Paint Ltd.

Sarah McCague
Section Manager
Marine Technical Operations

Letter of Support for the Envirocart

Dear Sir/Madam,

The West Australian Government owned Common User Facility is a 40 Ha integrated facility with an open access policy for multiple users. It has been operating since 2003 and is part of the Fabrication Precinct of the Australian Marine Complex located at Henderson Western Australia. It is a safe and secure location for fabrication, assembly, commissioning, maintenance and repair activities. As part of the facility there is a 12,00T lift capacity floating dock which has been operating since 2009.

The floating dock has been used to dock submarines and frigates for the Royal Australian Navy and numerous commercial vessels to conduct repairs, maintenance and hull surveys,

Not long after the dock had been launched it was noticed that Bio fouling was significant on the underwater hull. Growth was rapid and although a cathodic protection system was installed on the dock to prevent steel corrosion fouling was heavy.

At first, divers using plastic scrapers were used to physically scrape off the fouling and although the weed growth was easily removed, shell growth was difficult and time-consuming. We were approached by Franmarine who advised they were developing a cart with revolving brushes to scrape off the biofouling. A trial was carried out which proved highly successful. All manner of biofouling is removed without damaging the underwater paint system.

The Envirocart is now used as per our programmed maintenance system every three months to clean the underwater hull as it is highly efficient and significantly reduces the time taken to clean the 6,200m2 underwater hull. There have also been significant reductions in maintenance costs.

AMCM have been approached by a number of Marine operators enquiring about docking their vessels but because the doc availability is limited, alternative hull cleaning methods need to be undertaken. The Envirocart would be a significant enhancement to the maritime industry as a product that cannot only clean the hull so efficiently but also reduces maintenance costs, this can only assist marine operators to conduct business.

Paul Booth
Floating Dock Manager

Letter of Support for the Envirocart

It is recognised that one of the major global threats to biodiversity is the introduction of pests and diseases.

In the marine environment, the primary vector for the introduction of invasive pest and diseases is vessels via hull bio fouling or balllast water. The Department of Fisheries (Department) is the lead stage agency responsible for the management of aquatic biosecurity.

As part of the trials are published in two reports (Fisheries Occasional Paper 114: Report 1: In-water Hill Cleaning and Filtration System: In-water Cleaning Trials, July 2013: And Fisheries Occasional Paper 115: In-water Hull Cleaning System Cost and Cost Benefit Analysis: July 2013) available on the Department’s website at http://www.fish.wa.gov.au. In summary the Envirocart prototype met the key milestones of the Department’s tender.

The Department supports the development of in-water hull cleaning technology as it may provide a valuable, front-line defence again invasive marine pests entering and becoming established in Western Australia’s marine environment.

Yours sincerely,

Stuart Smith
Director General

Spirit of Tasmania Testimonial

Dear Sir/Ms,

I am writing on behalf of TT-Line Company Pty Ltd (TT-LINE), owners and operators of two Ro/Pax vessels, Spirit of Tasmania I an II. These two vessels carry passengers/vehicles and freight between Devonport Tasmania and Port Melbourne Victoria. TT-Line is a Tasmanian Government state owned Company.

TT-Line would like to endorse the work carried out by Franmarine and its Envirocart.

Currently the vessels go to dry dock every two years and their hulls are completely cleaned at this time. This means that there is two years of build-up of slime on their hills. As part of the Company’s Energy Efficiency Opportunities we have been exploring in water hull c leaning with the over site of the Tasmanian EPA.

TT-Line has been trailing various methods of in water hull cleaning over the last two years. These methods have included high pressure hose and cleaning sponges. These methods have proved effective in achieving some improvement in hull efficiency but they do not allow a full hull clean while the vessels are in the water.

TT-Line recently became aware of Franmarines’s Envirocart and after discussions with Franmarine we believe this piece of equipment will lead to large savings in fuel consumption and environmentally, less greenhouse gases.

The Envirocart will enabled the entire hull to be cleaned in water, the other alternatives that TT-Line have trialed only allows us to go a meter below the water line.

The other major advantage of the Envirocart is that it removes, filters and contains the biofouling whilst treating the water prior to discharge making it environmentally friendly.

TT-Lines believe this is the only Australian alternative for this type of cleaning as we are only aware of in-water cleaning machines that are used overseas. The cost of getting these to Australia with their personnel makes them cost prohibitive.

I am happy to discuss this further if you have any other further queries.

Regards,

Kevin Manyard
Company Secretary Environment & Risk

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