Today I did a hiking-related Dana for the #community of Bukit Mertajam (#Penang mainland, #Malaysia). I brought 2 bottles (450ml each) of Toilet bowl cleaner, a pair of sturdy rubber gloves with *no leaks*, and a scrubber. I borrowed a pail of water from the nearby tea station partway up the hill. You can see the before and after of the 4 benches I cleaned:
1/3
3/3
The active ingredient in this cleaning gel (which is to say, it's non-splashy, so as to avoid burns) is Hydrochloric Acid, for this to work.
Note: two "Good Samaritan" hikers joined me, whom could not speak English, and I didn't know them whatsoever.