Inflatable Kayak Blog

Occasionally I get a question about the ways to find leaks in an inflatable kayak, pontoon or float tube.

Probably the best way to find a small leak in any type of inflatable bladder is to mix up some dish soap and water and spray it on the bladder, watching closely for bubbles where the air is escaping. It sometimes takes awhile to notice where the problem is, but it does work. I read somewhere that adding some glycerin to the soap solution will give you better “bubble retention”. The writer used a formula of 1/3 cup of dish soap, 1 tablespoon of glycerin and 1 gallon of water.

Another method is to fill the bladder completely and get into a large swimming pool with it, forcing it under water while looking for leaks. Only problem with this method is finding a large swimming pool you can put your inflatable kayak, pontoon or float tube into. But if you do, this method should work fairly well, too.

One other place to look for leaks is around the valves. Be sure that the valves are completely tightened. Then spray some soapy water around the valves themselves. There could be a slow leak there.