It's also not really possible to test with water, as I'd have no way of getting it back out again. The tanks can't be dismantled as they're epoxied together, and the pipes are only 2mm ID. It would be nigh impossible to get them completely dried out. However I believe I do have a way to test the tanks without them being in situ now, so I'll make sure they're fine before putting everything back together.
Part of the fun of antweights is that often, you can't just get an off-the-shelf solution which you know will work. You have to bodge things together yourself using parts that are either designed for a different purpose or are completely custom made. This obviously means that there's going to be some more risk involved, but as long as you don't rush things and are careful, it's much more rewarding. I'd obviously not be advising this if we were talking about using compressed Co2 at much higher pressures, but with the antweight pressure limit only being 100psi, common sense and a reasonable safety precaution such a couple of layers of a towel are going to be sufficient.
Haz: I'm just going to glue the chassis back together once the pneumatic system is working and installed. It'll be a bit weaker, but I'm not spending money on a re-print for a design that might not even end up being effective
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