Overview

• Multiple outlets advise pouring about one cup of 3% hydrogen peroxide into the toilet weekly, letting it sit at least 20 minutes, brushing and flushing to disinfect, deodorize and brighten.
• For limescale, recent guides recommend dissolving 2–3 tablespoons of powdered citric acid in hot water, pouring it into the bowl and leaving it overnight before scrubbing.
• Recipes combining salt with baking soda are promoted for deep cleaning and odor control, often left to act overnight; ACS-cited material notes baking soda degrades stains, tackles organic residues and curbs bacterial growth.
• Vinegar and lemon solutions are presented as an accessible acidic option to soften mineral buildup, with suggested contact times of 15 to 30 minutes before gentle scrubbing and rinsing.
• Some step‑by‑steps add oils or essential oils for coverage and scent, suggest periodic use (nightly to monthly), and echo ACS guidance to ventilate and clean exterior surfaces as part of the routine.