Cleaning Drains Caustic Soda

He picked up the white plastic jug. The label was peeling, covered in warning symbols: CORROSIVE. CAUSES SEVERE BURNS. DO NOT MIX WITH OTHER CHEMICALS. Arthur didn't need to read them. He knew the liturgy of the drain by heart.

Hot. Not boiling.

: Caustic soda should never be mixed with other household cleaners, especially acids or bleach, as this can result in toxic gas or violent eruptions. cleaning drains caustic soda