Guided project
Bathroom · Repair

Running toilet

Diagnose flapper, fill-valve, float, and chain problems.

20–45 minEasy
Standard DIY precautions

Your personalized guide will include protective equipment, shutoff steps, and clear stop conditions.

Before we diagnose

We’ll ask a few focused questions

1

Does it run continuously or occasionally?

2

Is water entering the overflow tube?

3

Does pressing the flapper stop it?

Your guide will cover

Project roadmap

  1. 1
    Open the tank and observe a cycle

    Instructions adapt to your photos, answers, home, and available tools.

  2. 2
    Test the flapper seal

    Instructions adapt to your photos, answers, home, and available tools.

  3. 3
    Check chain and float position

    Instructions adapt to your photos, answers, home, and available tools.

  4. 4
    Adjust or replace the failed part

    Instructions adapt to your photos, answers, home, and available tools.

Likely materials

Start with the right supplies

Final recommendations are confirmed after diagnosis. Affiliate and sponsored placements will always be labeled.