From philmcdonald73@gmail.com@21:1/5 to All on Thu Feb 6 05:22:35 2020
The only efficient method is to use a High Pressure Cleaner at least 35 psi and a minimum of 75 degrees Celsius and persistence and patience. I do this for a living and the fastest way is to place the high pressure gun approximately an 8th of an inch
from the gum and move the gun in a small circular motion each piece of gum takes approximately 20 to 30 seconds to remove. The gum however does not break down the heat and pressure simply melts the gums hold on the concrete I suggest collecting the
removed gum and disposing of it in an environmentally friendly manner as it is essentially Synthetic Rubber which will rather rapidly cause damage to the local sewerage system and plant not to mention it really is not something that we want in our
waterways.