Adding acid dipped rock back to established DT

[jostafew]

You can get the muriatic acid at Rona. I did the same thing to try to cure a phosphate with my LR. Cooked it in Acid, then neutralized the remaining acid/water combo with baking soda. RO soak, then back in the tank. No problems at all. Be warned that you'll want to do this somewhere that can handle a fountain of acidic foam pouring out of your container!

If you're going to do this, be sure to start with your container already holding the required amount of water, then add add the acid to it. Very important that you don't go the other way around.