Inspect toilets for leaks and worn flappers

Why It Matters

Silent leaks waste hundreds of gallons a day and show up as a mysterious water-bill spike. Worn flappers are the most common cause.

Materials

• Food coloring
• Replacement flapper (if test shows a leak)

How to Do It

1. Remove the tank lid and set it on a stable surface nearby.
2. Add several drops of food coloring to the tank water.
3. Wait 15 minutes without flushing or disturbing the toilet.
4. Check the bowl for colored water. Color in the bowl confirms the flapper is leaking.
5. To replace the flapper, turn off the supply valve at the base of the toilet, then flush to empty the tank.
6. Unhook the old flapper from the overflow tube pegs and disconnect its chain from the flush handle arm.
7. Snap the new flapper onto the pegs and reconnect the chain with a little slack, then turn the supply valve back on and let the tank fill.
8. Run the dye test again to confirm the new flapper seals correctly.

Related Tasks

• Clear sink and shower drain buildup Every 3 months
• Close and reopen the main water shutoff valve Once a year
• Insulate exposed pipes in unheated spaces Once a year
• Run water in unused fixtures and drains Every 3 months
• Shut off and drain exterior hose bibs Once a year