Just ran on to something that works, the little white ties that have a wire in them work will, i used the small ones, that come with some of the garbage bags. take two of them, loosen the lock and slide them in from the top, i couldn't get them in from the bottom,the wire helps keep then straight and you can slide them all the way in, tighten the lock and with the wire in there it makes a snug fit. Give it a try i think this will help a lot.