Things You'll Need
Instructions
Purchase an inner tube from your local garage or scrap yard. You can also find them at tire shops or tire repair workshops. Make sure that it is big enough to hold your weight.
Connect the pipe on the foot pump to the valve on the inner tube. Use the foot pump to pump the tube until it is half full.
Fill a bathtub with water and push the tube under the surface. Check for any escaping bubbles which indicate a leak. If there are no bubbles, remove the tube from the bathtub and inflate all the way. If there are bubbles, proceed to the next step.
Make note of the location of any leaks. Remove the inner tube from the bath tub and dry it thoroughly with a cloth.
Scuff the area around the leak with a fine grade sandpaper. This will aid adhesion of the patch. Choose a patch that is big enough to cover the leak.
Apply adhesive to the patch and the tube and leave until tacky. Press the patch onto the tube and smooth it down to remove air bubbles. Leave to cure. Inflate your tube and head to the river.