My new garage has a large Channel trench drain in front of it. The architect oversized the trench drain and used a non-typical 12-inch drain. I'm confident that I won't get water in my garage. But on the downside the grate has a very large slots that easily allow leaves to enter. I'm worried about eventual clogging. Aside from replacing the grate (expensive), what are my options. I was thinking about possibly trying to retrofit some wire mesh underneath the existing grates. Or even at the opening of the drain hole at the end. Any other ideas?