I have fitted a toilet cistern and fill valve that I purchased a few years ago. The fill outlet is circular, and works fine but is and noisy filling, obviously needing one of those collapsible lay-flat polythene silencer tube s. I've no idea if it originally came with one. Anyone know where can I get such tube in small quantities? It needs to fit a circular outlet of about
15mm diameter, which would make it about 24mm wide when layed flat. Probabl y will be fixed at the top with a cable tie.Thanks, Simon.