The sealant in the tube idea is nothing new. Specialized has been selling their AirLock tubes for years. They work very well, but proved to be redundant for my situation. Just be sure to rotate the valve stem correctly before attempting to put air in the tube to keep from getting sealant in your pump nozzle. I think the AirLocks sell for about $10 a piece if I remember correctly.
-Kedosto
Edit: $12 on their website.
Last edited by Kedosto; 06-20-19 at 10:10 PM.