Patch a Leaky Air Mattress, Inflatable Boat, etc.

Step 4 Leaks Found!

I had some trouble in the lagoon. The mattress was so full of air I had trouble pushing much of it underwater to look for bubbles. Then the wind blew me away from shore. Fortunately the leaks were big enough that I was eventually able to sink the mattress and see bubbles.

I wiped an area near each leak sort of dry and drew arrows pointing at the leaks. A sharpie marker is good for this because it can mark a surface that's slightly damp. Enough for a couple of arrows anyway.

Now I'm ready to patch. I hung the mattress in the sun to dry out and got my mask out.
It's got a fresh organic vapor cartridge in it so I won't have to breathe or smell any of the braindamage fumes from the glue.

I cut a couple of patches from another air mattress that was slashed beyond repair by a store that threw it away.