Replacements & Maintenance


Filter specifications advise the maximum potential absorption capabilities of each filter type. The filters will last indefinitely until this maximum potential absorption is reached. However, due to the difficulties of measuring absorption amounts at any given time, we recommend the BilgeAway filter cartridge is replaced every 12 months. Preferably before the winter months when the bilge pump will be heavily relied upon to maintain safe water levels within the vessel.

If when using the bilge pump to evacuate the bilge area, a fuel sheen or oil slick appears in the waterway, then the filter cartridge has absorbed it maximum potential and is ready for replacement. Avoid using the bilge pump until a replacement cartridge has been installed (the team is currently developing a visual aid to help keep track of this).

If the bilge water flow becomes restricted or stops, check the bilge area to see how the bilge pump is operating and whether there are any bilge pump, pipe, hose or filter cartridge blockages. If the filter cartridge is blocked, it must be replaced.


The filter media is classified as non- reactive, meaning it will not damage the environment. However, due to the hydrocarbon molecule present in the material, it should be disposed of in the same way as other hazardous wastes.

RCR is working with WasteApp, a tool that connects businesses and people to their nearest waste treatment facility.  Once registered, users input their mooring or local boatyard postcode, plus a waste code of 150202, and a list of locations will appear.

The app’s primarily for commercial use, but available to boaters and free to use during its launch phase, where feedback on functionality is welcomed.

RCR hopes to offer a free disposal and recycling service in the future, and is in discussions with marinas/chandlers to arrange cartridge drop-off locations and various agencies to set up a national network of composting sites.