Furthermore, they emit toxic fumes that can throw your nerves out if inhaled for a long time. If you use it on bathtubs and showers, it may possibly corrode the surface and damage the material.īesides, it can also come in contact with your skin when applied in the shower, especially on the feet, which can also be dangerous for your health. It combines chemicals with bleach and hydrochloric acid to leave your toilet sparkling like new. Toilet bowl cleaner, as the name specifically caters for cleaning toilets, so it should not be used on showers besides porcelain toilets. Why Should You Not Use Toilet Bowl Cleaner In The Shower? Safety Measures To Follow When Using Toilet Bowl Cleaner.Can I Use Toilet Bowl Cleaner Elsewhere?.What Are The Alternative Methods To Clean Showers?.Why Should You Not Use Toilet Bowl Cleaner In The Shower?.