nasty rock

[Trevor82]

Hydrochloric(muriatic) acid. To do the 50lbs it took me 2 gallons of acid and maybe 4lbs of baking soda to neutralize it. I basically did a couple medium sized peices of rock at a time in an old salt bucket. 9 parts water to 1 part acid. I left all my rock in for about 10 hours at a time. Tested the solutions ph and if in acceptable levels dumped it down the drain, if not add baking soda. Total cost was about $30. If you have any questions you can shoot me a pm.

Trevor