You’ll need to perform this step (and the remaining ones in this chapter) at the beginning of each soldering session.
As you use the soldering iron, you’re going to be wiping the tip a lot, so you need to keep the solder station sponge moist. Pour a little clean, fresh water on the sponge as shown in Figure 1-3. Don’t soak it, but make sure it’s completely moistened.
If your water has a high mineral content, use distilled water for wetting the sponge.