Can the pump be dismantled? Can the pump filters be cleaned by using a closeable tub and a hole cut in the tub so you can insert the pump like in the tank and flush the pump with clean petrol?
Or sluse petrol through so the filters are cleaned that way.
Was meant as a sarcastic comment, on revenue generation for the local authority that is made many times on bike forums why charging happens.
Is the filter plastic and could it be plastic welded?