hunter2000
Well-Known Member
I tried snorkeling saturday lots of work constant current. These soda botles had a black substance thats very hard to clean. They are pepsi and coke bottles and a frog a couple different sodas there not very old one older All the old stuf is under the sand and rocks . Any one have suggestions on cleaning these and what the residue is. It was on the bottom also its kinda like the concreations we dig its very hard and black.