The C and MC Rubber Band system seems to vary and in our opinion doesn't work anyway.
The new idea for Brixham at least, was to have the wrist bands chilling out in a pot of sanitiser and below a notice board which had seven numbered hooks.
Hooks one to four were for the toilet part of the amenities block and hooks five to seven for the showers and sinks.The same system applied to the womens block.
The idea was to take a band and hang it on a hook when entering the toilet/shower block. Most people gave up using them because on numerous occasions the hooks were full and the toilets were empty. There were sometimes large queues forming outside for no reason.
Randa