You know what’s funny (and kinda interesting)… papers auto ignition point is 451F and gasoline as a liquid (absent of vapors) auto ignition point is 490F. So if fire could exist in a vaporless vacuum paper is more dangerous than gas.
Walmart sells 10% bleach in the pool section… it’s labelled chlorinating liquid. It’s seasonal here, though, and out of stock… dont know about where you are at. Might check and see.
I’m in Ca also. Sorry I didn’t clarify that. Try to find an ace hardware. Or a home depot. They have HDX chlorinating liquid 2 gal for under $7.00, 10% SH. Apparently home depot how a pool supply section…