To troubleshoot toilet tank repairs you need to understand that a toilet tank has a number of important components built into. To fix a toilet tank you will need to adjust or replace one of these components.

How a Toilet Tank Works

Troubleshooting Problems

Toilet runs constantly

Toilet tank refills when the toilet is not flushed.

Not enough water in the tank.

Tank does not refill.

Water trickles into the toilet bowl.