A study by E-A Earth Action reveals that paint particles are the largest source of microplastic leakage into oceans and waterways, accounting for 58% of all microplastics. Other sources, like textile fibres and tyre dust, contribute less. Joao Matos de Sousa, Senior Programme Officer at IUCN, says: “The science has demonstrated the problem, now it’s up to us to find ways to restore our rivers and oceans.”

A cost-effective solution to prevent pollution is the Wavestream bilge filter, retailing at less than £150. It is easy to install between the bilge pump and water outlet. Paint and varnish chips often end up in bilges, especially after maintenance or repairs. Marine biologist Monty Halls, who installed a Wavestream filter on his yacht, found significant amounts of paint particles and fibres in the filter after six months of use. These particles included red, white, blue, and black fibres, likely from clothing and upholstery on board.

Paul Gullett, MD of Wave International, explains: “Paint and resin particles are released from general wear and tear, and maintenance. Fitting a Wavestream filter prevents this pollution from entering the water.”

The filter also captured organic matter like sludge and slime. Without it, microplastics, fibres, and paint particles would be discharged overboard.

Boat owners are increasingly choosing bilge filters, especially as new regulations such as the Endorsed Recommendation for Use (ERFU#94) mandate that watercraft must prevent accidental discharge of pollutants. The Azores has created the largest Marine Protected Area in the North Atlantic, with stricter limits on pollution.

The Wavestream filter ensures that pollutants like oil and microplastics meet the 5 ppm standard, and only needs changing once a year. It’s a reliable, sustainable solution to minimize watercraft pollution.