Water from toilet flows into bath tub. - Home

SOURCE: Toto Toilet - no water flow to refill tank after flush

Remove the tank lid and look at the fill valve. Is it a yellow valve?
This fill valve is common on the Toto Toilets and can easliy plug with debrie.

They can be disassmbled and cleaned. however, I usually just replace the valve with Fluid Master Fill valve.
You will also want to check the water coming into the toilet by turning off the water that supplies the toilet and disconnecting the water supply line. After removing the water supply line turn on the water at the valve to make sure that the water is flowing properly. Check the supply line also to make sure it is not plugged.
Be sure and place a small container to catch the water that will come from the valve. A towell will also help from making too much of a mess.
If the Supply line and the valve are clear the problem is in the fill valve.
The G-Max system denotes the Flushiing system which is a 3" flapper that allows the water from the tank to flow into the bowl quicker.
Good Toilets!

sanray

SOURCE: Master bath toilet replaced with a Cimmeron class

Kohler is correct. The most likely cause of this problem is an obstruction in the common vent stack that both toilets share. When you flush the old toilet it need more air to flush and will get it from the easiest source (your new water saver toilet). First adjust the float level in the old toilet so it won't use as much water or just stick a brick in the tank to take up space.Second, run a snake down the vent stack from the roof to check for obstructions. Birds will sometimes nest in there.

SOURCE: standard toilet will not flush

If this is a new development, then you have a partially clogged drain or maybe a crack in the bowl assembly. If the toilet always did this, then perhaps the drain pipe was not installed correctly.

I would remove the toilet and run a snake through to the main stack. If you find that is clear, check the bowl for cracks and check the tank water level to be sure that the tank is filling to the water line on the tank

SOURCE: Cheviot Wall hung toilet flush valve replacment gasket

try a plumbing supply co. they may help you

SOURCE: Downstairs toilet won't stop filling, upstairs toilet won't fill

for the upstairs if the valve is fully on there is not much you can do other than replace water service to the house or heaven forbid repipe.Valves usually don't restrict fill volume.But you can take the supply loose from the tank and stick it in a bucket turn the valve on and check the flow.this should narrow it down.Down stairs repair or replace flush valve