4️⃣ Add the baking soda
Sprinkle it on → it foams, that’s normal. 🫧
👉 It’s the cleaning action that dissolves the limescale.
5️⃣ Leave on for 30 to 60 minutes
For a very dirty tank: leave it to act for 2 hours.
6️⃣ Rub gently
Use an old toothbrush for:
✔️ the float
✔️ , the seals
✔️ , the corners
✔️ , the mechanism