I don't use miner's moss anymore. It's simply too time consuming and difficult to clean up. You'll do better spending your time digging. I use the RazorHog gold mats in my sluicebox and i'm very pleased with the gold i'm getting. Go to the website and read what the company has to say about using moss and other gimmicks and how they interfer with pressures and flow rates that cause gold to fall out of material in water. After viewing the site, you'll be WAY AHEAD of the game.