I suspect there aren't many people who are running grinding wheels on both sides of the T-8, but for those who do, water falling on the rubber of the drive wheel can be a problem. Not a huge problem, of course -- but it does cause some slippage and thus loss of power.
Some folks have dealt with it by using a section from a 1.5 liter bottle as a shield. I recently got a 3D printer and came up with this alternative:
(https://i.postimg.cc/PqWCQXsP/Tormek-Water-Shield.jpg) (https://postimg.cc/jWjqsrjb)
At the moment it's held in place with some double-faced tape on top of the Tormek. To be honest, it's a bit rickety in its present form, but it works fine. I'll probably end up doing a new version that eliminates the blue braces altogether. Maybe extend the circumference of the shield, build in some tabs on either side, and then have two pieces, one on either side, to stick onto the side of the machine and accept the tabs to act as support.
Nice. I don't dual wheel sharpen very often, but when I do, drive wheel slippage is definitely an issue.
When I sharpen my 15" thicknesser blades I get water all over the wheel. This will be very handy