here are some of the images from parkour day at the south bay jam, basically our first official leave no trace event. Here are a bunch of pics, some of them don't show the difference much, but the cleaner we used was amazing!
The parks are too well maintained around here so we couldn't find any trash to pick up.....so we ended up cleaning walls instead. We used Mr. Clean's Magic Eraser (the extra strength kind) but we're going to be testing the generic brand ones as well as soap and water.
Tips for maximizing effectiveness:
The substance inside the sponge-thing will do most of the cleaning, so wipe it softly over the light marks and use either a normal sponge or hand to get the rest of it off.
Put some more water on the sponges every now and again, they work best when they have a decent amount of water.
Bring a normal sponge and water to wipe off the chalky white residue it sometimes leaves; it's harmless and easy to remove, but if you really want it to look clean some more washing helps.
Overall it was really fun and rewarding; it'll be nice to clean up the rest of the walls where we train.