if you've seen one of those freestanding vinyl pools, it's in the air filled tube rim thingy. Ideas?

soap...lol now I'll have to look up how to do it, but I know you can use soap to bubble at the hole.

Mix up a solution of dish soap and water without getting it too bubbly. Here's how to find leaks on a boat, but same idea: ri.ms/hw

hopefully not in the pressure chamber!

off to buy a 30 gal drum of soap (it's a big pool). thanx guys