how does slime make a mess? i mean unless the tube came off the fill up valve and you kept squirting i guess, and i think its a permanent fix, or close to, my front tires were so dry rotted on my h-14 they lost air instantly without the snowblower on, when i filled them with slime, and i mean filled em good, i had no leaks, i could use my deck or snowblower, and 4 months later, still no issues, granted im going to buy ribbed tires for the front of my tractor soon and AG's for the back ill have a small mess with the front tires, but that why ill lay a plastic garbage bag down, so i dont turn my lawn neon green.