My cousin had a similar setup .. he could make anything from gram or less to close to half an ounce.. But he couldn't do it all in one bottle .. he mostly used soda bottles to make his gas and to puff off his finished product... but alas one day the valve he had for controlling how fast his annie escaped got clogged and the bottle built to much pressure... all while he was tweaked out of his mind... stupid mother fucker almost go a darwin award
he lifted the bottle to his ear to see if he could hear any more gas being let out of the valve and the bottle blew up in his face... stupid ass hole didn't have a shirt on or wet towel around the bottle like he should have.
He had annie burns all over his chest and it ate the shit out of the moisture in his eyes. he almost was blinded had to get surgery to get scar tissue removed. The whites of his eyes had actually turned black it was fucking weird looking. He couldn't go to hospital and had about 2-3 weeks of excruciating pain ...