Water Gauge for container

[Duke]

I added a slight modification to my container so I can easily see how much water is in it. The wire is from a utility marking flag, the bolt is a 1/4-20 nylon bolt and the float is from a slip bobber. Bend the wire on the outside around until it points the direction you want it to when its full or empty. Simple to do, just be careful drilling the hole through the bolt. The nut really isn't needed if you drill the hole a bit smaller than the bolt.