So, draino is mostly sodium hydroxide, lye. Sizzle, the stuff in the gallon bottle sealed in a bag is high molar sulfuric acid.
I had a friend who did stoppages. The lady puts draino down the drain, it does nothing, standing water.
She calls the super, says nothing about the draino. He pours Sizzle down the drain, nothing happens.
For some reason they stayed seperate, maybe weight?
Anyways, they call a plumber, and tell him none of this.
He puts his snake in there and stirs it up.
The reaction generates steam, and it all erupts in his face.
1st and second degree burns, all his hair came off in a glob. Somehow his eyes were okay.
About 4 months later his hair and eyebrows grew back.
...get into ER an Explain That one.....
Hispanic families see you high and feed you cause they think you are sick or something I love it. 
