Guys, I have always used a flea rake. I took an old colander my wife had in the kitchen this past Tuesday night. I don't know if that is the correct spelling. You know the thing you rinse vegetables out in. Take an old fold up Army shovel, or your hands and throw the sand in it, and rinse it out in the waves. Worked better than a rake for me. I had it half full of fleas in about 5 min. Leave some of the rocks and gravel in it that the fleas live in. Set it on top of ice in your cooler, and they will stay alive a couple of days.