Alternatives to carb cleaner

Apparently from what I can remember she had cleaned the toilet with bleach and flushed it and it wasnt good enough so she poured the acid in the bottles we had looked like a differential oil bottle. With the little spout on the end. Apparently all the beach wasnt out and it put out some kinda toxic gas.

It made chlorine dioxide gas which is extremely toxic. It will sear the lining off of your nose, throat and lungs causing chemical pneumonia that can result in death.

It’s not very different than the poison “mustard gas” used in WWI that killed thousands.