What is the most common cause of a running toilet leak?
Most running toilets are caused by a worn flapper that no longer seals. A close second is a misadjusted or failing fill valve. We stock both parts for same-visit fixes in Franklin and nearby towns. Priority Plan members receive a free dye-tab test to spot silent leaks.
Quick checks:
- Add food color to the tank; color in bowl = flapper leak.
- Set water level to the tank mark.
- Ensure the flapper chain isn’t too tight or tangled.
Updated: 2025-12-29
Need help in Bellingham, MA? Call (508) 571-6488 or book online.
Sources 12
- $75 off any repair or service of $500 or more.www.gandcplumbing.com
- Tank and tankless water heater flush & inspection included with membership — listed as a $250 value.www.gandcplumbing.com
- Veterans Day Giveaway: one deserving veteran will receive a brand-new water heater plus free professional installation; nominate via the Google Form on the site.www.gandcplumbing.com
- Smaller repairs might start around $150, while larger or complex fixes can exceed $500.www.gandcplumbing.com
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