Water change tub refills made easy

[Reef Pilot]

The clip is tighter than it looks, plus it has that little hook on the bottom, that catches the IO bucket rims that I use sometimes if I need extra buckets. I tested it on several different tubs and rims, and holds pretty solid. If there is any doubt, I can attach a plastic clamp over the clip, but don't think that will be necessary. The water flow stops as soon as the float is raised, without a lot of pressure/leverage on the clip.

This way I don't have to drill holes and have a float for every refill tub or bucket that I use.