Cucumbers are about 95% water, so when they’re cut, they’re going to release too much moisture into the salad. To draw some of the water out, place cucumber slices in a colander, toss them with big pinch of salt, and let them sit for 30-60 minutes. Rinse off the salt with cold water and pat them dry with paper towels. This will make a noticeable difference and your salad will be less watery than if you hadn’t taken this step.