Caustic Soda For Blocked Toilet ((full)) Guide

Leave just enough water to cover the drain hole. Pour 1 cup (250g) of caustic soda flakes directly into the toilet bowl, aiming for the drain opening.

Before you pour, here is the complete guide to using caustic soda on a toilet blockage. Unlike bleach (which disinfects) or sulfuric acid (which chars organic matter), caustic soda works via saponification . It turns fats, grease, and organic waste (like toilet paper and feces) into a water-soluble, soap-like substance. caustic soda for blocked toilet

When in doubt, throw the lye away and snake it out. Your plumbing (and your skin) will thank you. Leave just enough water to cover the drain hole