Arrived!

162N sharpal diamond whetstone arrived thanks to your recommendations! Now my last two questions, 1. After dry sharpening, do I need to run some water over it to prevent clogs. 2. What is the best angle to sharpen with for double bevel blades?

162N sharpal diamond whetstone arrived thanks to your recommendations! Now my last two questions, 1. After dry sharpening, do I need to run some water over it to prevent clogs. 2. What is the best angle to sharpen with for double bevel blades?