Thread: Naniwa flattening stone question

I use my Naniwa's under running water. It keeps them from clogging up and it enables me to do very smooth laps because it is gliding over the water. It also removes any particles on the stone. I was told that the water isn't the key to getting good results, it just keeps the pressure much lower because of the water cushion. It works for me and I find cleaning the stones much easier because the metal doesn't clog the stone.