While caustic soda is excellent for emergency clear-outs, it is harsh on your plumbing system and the environment. The runoff eventually enters the water treatment system, and high concentrations can be harmful to aquatic life.
After the waiting period, flush the drain with a large volume of boiling hot water. A full kettle of boiling water usually works best to wash away the dissolved sludge. caustic soda unblock drains
Here’s a feature breakdown for using to unblock drains, presented in a clear, informative format. While caustic soda is excellent for emergency clear-outs,