Two Seabins have been installed in the Mandurah Ocean Marina in a bid to reduce rubbish and oil floating in the waterways.
The bins, installed by the Peel Preservation Group (PPG), were switched on last week at two locations in the marina and are essentially floating rubbish bins that move up and down with the tides.
Up to 25,000 litres of water per hour is sucked in from the surface and passes through a catch bag inside the Seabin.
The water is then pumped back into the marina leaving litter and debris trapped in the catch bag.
The bins are among the first to be commercially installed in Australia.
A Seabin is capable of catching 500kg of waste a year, which is equal to 90,000 plastic bags, 35,700 disposable coffee cups or 16,500 plastic bottles.
The Seabin was launched by Australian boat-builders and surfers Andrew Turton and Pete Ceglinski in 2015.