Originally Posted by codprawn
Looks very similar to the orange plastic netting you find on building sites - i suspect the plastic netting is quite a bit cheaper though!!!
I was going to comment on your first post, but this one'll do quite nicely.
I took a look at the orange netting for just this purpose. I found it to be a) not "tall" enough (as it's supposed to be rigged), b) nowhere near strong enough (though that's a guess), c) tough to join together to form a big enough piece of netting.
I think a coarser weave nylon net would do the trick (as the net in Stoo's post demonstrates, though I'd like it a bit tighter than what they've got.)
I mostly dive off my boat, quite often solo, so the rig has to be manageable by two people minimum (I assume that even if I'm solo, the incapacitated divers buddy will be there.)
Worst case would be to have to recover one unconscious person while solo; in that case, I would figure on getting them attached to the boat, head clear of the water, and scream for help on the VHF.