Using Caustic Soda To Unblock Drain

After the waiting period, flush the drain with hot water. It is best to use boiling water (from a kettle) to wash away the dissolved residue. If you are unblocking a toilet, use a bucket of hot water poured from waist height to generate a bit of force, but be cautious of splashes.

: Most applications involve carefully adding the chemical to cold water. Never add water to the chemical, as this can cause a violent exothermic reaction and splashing. using caustic soda to unblock drain