Well I have got a real winner to fix those flats everytime!!! Yesssss yeeehhahahaha okay so here it is! To fix a flat you probably need a patch and some glue right? Okay so go for those patch kits that offer you a few patches and a little tube of glue or cement to do the work. You can get a couple of good jobs out of that if it's all workin ya know! You can also do the same thing over repeatedly and go to the store even though it's miles away. You could buy a big can of rubber cement and take those old tubes that you have and make patches about an inch square or just however big you like too!! When you do this it's easy because I made about 200 or so patches and that can of cement just won't quit either!!! Sure thing here all so you can decide how you want it okay yall!! Now for something to find that hole or leak well here's a fixer just take an old aquarium fish tank and then use it! It should be just big enough to hold the entire tube when it is inflated to enough pressure. This is easy to find the leak look for the air bubbles and if you like mark with a yellow crayon!!! Sure thing again all!!!