He is the only one that keeps losing
Acceptable breathable air is between 19 and 21.5 percent oxygen. Also propane is stored as a liquid so eye protection is a must. Your answer has to be B. A and C will not protect you.
PVC isn't rated for hot water, so if you used a flame, you most likely ruined it and you'll have to replace the pipe. Fortunately it's easily cut with a hacksaw, and any home supply store will have couplers and any other pieces you need to put it back together.
speed bump? LOL I wanted to be an author never going to happen.
