Those pesky pins escape everywhere, they will float on the soap bubbles. I use a mechanics magnet on a stick to pick them up. I use a RCBS rotating media separator, with the bottom cut out and place a nylon paint strainer over a 5 gal. pail and put the media separator on the pail, the pins (most of them) drop into the paint strainer, I rinse the soap off the brass while turning and spinning the brass over the 5 gal. pail. It works for me. When all the pins are in the strainer, rinse the remaining soap off of the pins, I hang the whole set up to dry. I use the mechanics magnet to find the pins that have escaped into the dirty water, before pouring the water down the drain.