Here's some fodder for comment:

SeaKettle Life Raft

Interesting concept, but I see some drawbacks.

- requiring the sun to make it work.
- a RO desalinator would cost less than the additional costs for the special construction needed to make the life raft.
- the designer's understanding on inflatable chambers in coated fabric is in error as you wouldn't see those flat surfaces unless drop-stitch fabric is used, which would really jack of the cost.

Cheers,

Tom A.