If the water in the toilet bowl has changed color, it means that water is leaking from the tank into the bowl. Reduced Flush Efficiency: The tank and bowl connection don't maintain water pressure.

Simply pour a cup of fabric softener directly into the toilet tank, then each time the toilet is flushed, the movement of the flowing water ... connection between the toilet tank and the toilet ...

In the US, toilets use 27% of household water requirements. That’s a lot of water to only be used once. The water filling the toilet ... bowl so that water could drain down into the tank.

Don’t pour boiling water into the toilet bowl. It could crack the cold porcelain ... shut the water off at the tank. Call a plumber if you do this process twice with no result.