The idea behind this one is easy to get behind: the maker enjoys creating things that simplify their process, and this station is exactly that. It is a homemade recirculating water whetstone setup for sharpening knives, built inside an open glass aquarium tank.
The assembly is simple and tidy. The rectangular blue stone sits in a wooden base spanning the tank's open top. Under the waterline, a small submersible pump feeds clear flexible tubing, held in place with blue cable ties. The tubing sends a steady stream of water onto the stone, and whatever runs off drains back into the tank below.
What stands out to me is how the parts suit the stones. The maker uses soft Japanese stones, and those need soaking before use. A station that keeps water constantly available over the surface seems, to me, a good match for that kind of stone. The maker slides a knife with a wooden handle across the wet stone while sharpening, and the water flow has already been adjusted during testing. The verdict so far is that the setup works like a charm.
There is still one gap. No filter is fitted yet; the maker plans to add one once a suitable solution turns up, and a magnet to catch metal sediment is also under consideration. A proper stand is on the wishlist as well, and the whole concept is still being fine-tuned as testing continues. I will be curious to see how the filtration question gets settled.