Can you store a synthetic waterstone permanently in water? Will it degrade the stone?
When I was last doing woodwork classes the school had a water cooled rotary grind stone/wheel, and I remember that it was important to remove the water resevoir after use and let the stone drip dry for a few minutes while still turning. Some past student had left the water on, and the half of the stone in the water had swollen unevenly, making the whole grinding wheel asymmetric. Could something similar happen to a modern, flat waterstone?
Most waterstones need to be soaked in water for between 5 and 15 minutes before use. But I've seen a video where the demonstrator just seems to splash 2 or 3 handfuls of water over his stones (but I suspect because he sharpens many times a day they would get plenty of water).
For context (although I'm not sure it's important) My shed/workshop doesn't have running water. I can tote a big bottle of water down there, it would be easiest to simply store the stone in a clip-lock plastic box.