Sorry I didn't get a photo. Please picture a polyethylene tank enclosed in diamond plate. There are oval cutouts in the diamond plate revealing the side of that poly tank. These ovals are supposed to be for assessing the water level in the tank. Supposed to be. You can't see the water level except in very rare circumstances. We thought of placing a fiber optic light in the tank to help show the water level, but this would be difficult to pull off. Anybody have an idea?