First, I got my bicycle puncture-repair kit, and found what I wanted: a tube of glue, some chalk and some rubber patches. In addition, I got a bucket full of water.Second, I took the wheel off the bicycle, leveled off the tyre and took out the inner tube. Thlrd, I partly pumped up the inner tube and then submerged it, section by section, in the water to see where the puncture was. When a stream of bubbles were rising, I knew where the puncture was. Fourth, I dried and cleaned the surface of the inner tube. Then marked the hole with the chalk, applied some glue
