toto toilet leak

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toto toilet leak

Author: lee key plumbing (CA)

My toto gmax was making high pitch noise sometime after flush. Installed new Korky replacement fill valve and noise stopped. Checked tank level awhile after flush and it had gone down-no noise from fill valve. Refilled, used dye in
tank and after 2 hours no dye in bowl and no sign of leak outside toilet but the tank level had again gone down
several inches. Could the toilet be cracked so as to allow the water from the tank to bypass the bowl and go down
the drain? Or am I missing something?

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Re: toto toilet leak
Author: packy (MA) was there a refill tube attached to the original toto fill valve? some have them and need to be replaced with the same type. others do not.. also, there is no way water from the tank can get to the drain unless is goes thru the bowl.
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Re: toto toilet leak

Author: DrBrown2851 (OH)

Please let me know if you solved your problem. I HAVE THE SAME THING HAPPENING. My upstairs toilet fills normally, then the water disappears. I've had 2 opinions offered, neither of which I am confident in, because the problem with mine is intermittent. It went on for about 2-3 months, then stopped for about 8-9 months, then started again.

The toilet works fine, but if you are "going # 2", you have to flush first to get water in the bowl so you can flush when you are done with business.

The 2 opinions I've heard so far ...

1.) A crack on the inside of the bowl inside the lower extremes, allowing the water to drain down without any leak being visible.
2.) A vacuum somehow is sucking the water out. Not sure how that would happen, especially intermittently.

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