Posted: Wed Nov 02, 2005 5:28 pm
I use 2 oz of bleach to a gallon of water; this yields a 1.5% solution of bleach, which is sufficient for general disinfecting (You can use that as a guide if you want to go stronger, but I wonder if that's necessary). Rinse well afterward repeatedly.
Your rocks have cracks/crevices in them? You could let them sit in plain water after using a bleach solution on them, changing the water periodically.
Depending on what I'm using the bleach solution on, after rinsing well, I let the object air dry just to let any chlorine dissipate, much as it does from chlorinated water if it's left standing for 24 hours.
"You become responsible, forever, for what you have tamed." -Antoine de Saint Exupery-