We have a 5 meter by 14 meter pool and have to clean the muck up every summer and we would never just use the vaccume as is clogs up after a 2 meter strip, Then you have to flush the filter gunk out witch takes 10 minutes each time. You could get a pool net and scrape it accros the ground thats what I do and then dump a whole heap of chlorine in which clears it up in no time.