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Rick, Construction Supervisor
Category: Plumbing
Satisfied Customers: 21799
Experience:  Licensed Master plumber with 40+ yrs. experience.
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What would cause a toilet to leak from under the tank, only

Customer Question

What would cause a toilet to leak from under the tank, only when flushed?
Submitted: 1 year ago.
Category: Plumbing
Expert:  Rick replied 1 year ago.
Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your issue. If my initial response doesn’t answer your question then let me know and we can continue our conversation.The tank to bowl gasket (typically a foam donut gasket) has failed and needs to be replaced.
Expert:  Rick replied 1 year ago.
The tank has to be removed to replace this gasket. It's usually a good idea to replace the bolts that bolt the tank to the bowl too or at least the rubber washers behind the head of the tank bolts.