A leaking toilet is more than a nuisance — it can waste water, increase your utility bills, and even damage your floors. If you hear water running constantly, notice puddles, or experience frequent tank overflows, this guide is for you.

We’ll walk you through the 3 most common toilet leak types and how to fix them. If things get tricky, you can always book a PUB-licensed plumber easily through the Call Handyman App.

💧 1. Bowl Leak – Constant Running Water

• Signs: Water keeps flowing or dripping into the bowl even after flushing
• Causes: Stuck flush lever, misaligned chain, or worn-out flapper valve
• DIY Fix: Adjust the chain or handle; replace the flapper (turn off water supply first)

💧 2. Base Leak – Water Around the Toilet

• Signs: Water pooling at the base or foul smell after flushing
• Causes: Damaged wax ring, loose toilet bolts, or cracked toilet base
• DIY Fix: Tighten bolts if loose. If the wax ring is faulty, replacement is best done by a plumber

💧 3. Tank Leak – Overflowing or Non-stop Filling

• Signs: Tank keeps refilling or water spills over the top
• Causes: Misaligned float or faulty/clogged fill valve
• DIY Fix: Adjust the float level, clean or replace the fill valve

⚠️ Emergency Tips

• Shut off the water supply using the angle valve near the toilet
• Do not overtighten plastic parts – they may crack
• Preventive maintenance: Replace flappers and seals every 3–5 years