One of the RynoWorx Crack Repair Machines' greatest advantages is how much bigger the nozzle is than the competition's. That means it's less prone to plugging up when you're on the job.
Another innovation is that it is fully removable for cleaning. Start by heating it up with your accessory torch. Using a pair of heat-proof gloves or vice grips, slide the valve right out and let the excess material flow out. This will leave a clear passage for the next crack repair job you are doing.