/biz/ - Business & Finance

>>52515137
Of course I could build one myself old school style too, or just the “channel” and then buy some mats, but I currently don’t have the tools or space for it, so buying seems cheaper, actually.
Those vortex sluices seem interesting. The one by xp detectors (pic related) is quite cheap and really light , but apparently you need to classify down to 4mm/ 1/8th of an inch to make it work and my river has (rarely, though…) stuff bigger than that. Plus, classifying gravel down to 4mm is a lot of work with multiple passes. Don’t want to classify more than with my garret one.