air leaking form inflatble pool ring

[sqkiller]

i have this really big pool and i and at the top of the pool is this big inflatble ring that i use my air compresser to fill up but it been leaking slowly and i tried finding the hole pouring water on it to find bubbles but i can find the leak i had this one idea of blowing colored smoke into it while airing it up so i cloud find the leak but my cousin said it isnt possible do you guys have any other ideas

[Pool Helper]

Dishwashing detergent in a small bucket of water. Make the solution quite strong. Use a sponge or soft brush to spread it around. The leak will "blow bubbles".

[sqkiller]

thanks that better than the half baked plan my aunt came up with she said get dish soap and water and spread it around i looked at her like stupid that creates bubbles