We have a large trike for the boys which always had a slllllowwwww leak in the left back tire. I looked for a replacement, but could never get around to getting one since we just aired it up and it was good for a few days. I found some replacements but did not like the cost. Then in desperation I took the wheel off and was going to find a new one. On my way to work I passed a tire store when it finally dawned on me. . . Just get it fixed! What a brilliant idea! LOL!!! (I laughed so hard at myself, I had tears). It only took a couple years, but there was the answer all along! When I told my wife, she said, “Our daughter and I were wondering why you just did not get it patched.” (LOL AGAIN!)
In my defense against all stupidity, I never took the wheel off before, so I never had it with me to see if anyone could fix it.