
How to Tell If You Have a Plumbing Leak: Visible Clues and Meter Checks
Leak clues include meter movement with fixtures off, stains, soft flooring, running toilets, pressure changes, odors, and unexplained water use.
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Troubleshoot common leaks, clogs, toilets, faucets, pipes, dishwashers, water heaters, and water-quality problems. Learn what you can safely check and when it is time to call a plumber.
Choose the symptom that is closest to what you are seeing.
Start with clear answers for common household problems.
Explore homeowner guides by fixture, system, or task.
Find help for a running toilet, weak flush, refill noise, bowl-water changes, clogs, and toilet fit questions.
Faucet & SinkUse these guides for sink, faucet, aerator, disposer, and single-fixture drain symptoms.
Drains & PipesStart here for visible leaks, clogs, pipe-material questions, water-pressure symptoms, and whole-home plumbing clues.
Bathtub & ShowerBrowse bathtub, shower, showerhead, drain, surface-care, and fixture-fit questions.
DishwasherUse the exact model manual first for dishwasher drainage, odor, cleaning, door, and under-sink symptoms.
Water HeaterThese guides help you document hot-water symptoms and prepare useful questions for a qualified plumber or appliance professional.
MaintenancePlan seasonal checks, locate shutoffs, document symptoms, and decide when a plumbing problem is urgent.
Water QualityFind testing-first guidance for hard water, rainwater, filters, discolored water, water use, and fixture efficiency.
Popular starting points for common questions.

Leak clues include meter movement with fixtures off, stains, soft flooring, running toilets, pressure changes, odors, and unexplained water use.
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Learn where main shutoffs are usually found, how to identify valve types, and when not to force a stuck or leaking valve.
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Start with the dishwasher manual, filter, standing-water pattern, air gap, high loop, and disposer connection before touching hoses.
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Find the cause of low water pressure by checking fixtures, aerators, valves, filters, leaks and utility service. Learn which fixes are safe and when to call a plumber.
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A running toilet may be caused by a leaking flapper, tangled chain, wrong float setting, misplaced refill tube, or worn fill valve. Find and fix it safely.
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Plumbing emergencies involve active flooding, sewage, gas smell, no safe water, burst pipes, or water near electricity—not every drip or slow drain.
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