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Why is my toilet leaking around the base?

Water at the base of a toilet on flush usually means the wax seal between the bowl and the drain has failed — but two cheaper impostors, condensation and a weeping supply connection, are worth ruling out before anything gets unbolted.

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Snap a photo or describe what you see and the FinderlyFix assistant tells you what is likely going on, before you spend anything.

What it usually is

  1. A failed wax ring seal

    The wax gasket seals bowl outlet to drain flange. Once compromised, each flush pushes a little water out at the base — and worse, into the floor beneath. Leaking that tracks flushes is the signature.

  2. A rocking toilet that broke its own seal

    A bowl that rocks even slightly works the wax loose over months. The rock is the root cause; a new ring without fixing it fails the same way.

  3. Condensation sweating down the bowl

    In humid weather, cold tank and bowl surfaces condense room moisture that dribbles to the floor — no flush correlation, worse on muggy days.

  4. The supply line or tank bolts weeping

    A drip from the wall stop, supply nut or tank-to-bowl bolts runs down and pools at the base, imitating a seal failure from above.

Safety first: Water that appears without flushing and smells foul is drain backflow, not a seal drip — stop using the fixture and get it looked at promptly.

What you can check yourself

Dry the floor, then flush and watch with a flashlight: water emerging at the base gasket line means the ring. Feel the supply line and tank bolts for moisture. Check for rocking — shims can stabilize the bowl, but if the ring has been leaking, floor inspection matters more than shimming.

When it’s a job for a pro

A wax ring replacement means pulling the toilet — honest DIY for some, a routine hour for a plumber. What tips it professional is the floor: softness or staining around the base suggests subfloor damage that should be seen before the toilet goes back.

A pulled-and-reset toilet with a new ring typically runs $150 to $350; add flange repair at $100 to $300 if the flange is broken. Subfloor repair is separate and argues for catching this early.

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