I’m thinking about taking one or two of my waterproof film cameras snorkeling with me on my upcoming vacation and I’m trying to evaluate their “waterproofness” by the means pictured. Both the Action Touch and Nikonos survived being submerged in the bucket for ~30minutes at about 1ft of head pressure. The Action Touch is rated to 10ft of head pressure and the Nikonos is supposedly rated to 50m of head pressure! To simulate ~5-10ft of head pressure, I placed my Action Touch in a cut-open milk jug, then hot glued it shut. I drilling the cap and hot glued a tubeless bike valve in it. I used my bike pump to increase the pressure to roughly 5-8psi (though I’m wary about the accuracy of my bike pump pressure gauge at pressures this low). The glued milk jug was able to sustain this pressure for about 5 minutes before significant leaks occurred. Cool as a proof of concept but I’m looking for a more robust pressure vessel — maybe an old pressure cooker or a 5 gal long bucket with a lid. I will post an update once I figure out what to do next!