Well, I bought a big "bottom-sized" sieve (chuckle, chuckle). Trouble is, it is collecting yesterday's salad and fruit fibre too. Then I pour water through it but all the fibre still remains. So I'm tipping it onto a paper towl on newspaper and sifting through with a latex glove on but I can't really collect all the stones as they are too little.
What do you all do? Maybe it's better to use a tea-strainer and scoop them out of the toilet bowel?