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Home · Guess the stat

How well do you know plumbing?

Guess the real numbers behind the pipes in your home, see how everyone else guessed, and get the source.

Guess the statOne tap · see how everyone guessed

About what share of a home's indoor water use goes to flushing toilets?

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A person processes film in a darkroom with visible plumbing and equipment, showcasing the art of traditional photography.
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Today's round

  • 4 stats to guess
  • 1 opinion poll
  • 0 played today

Guess, see the crowd, get the real number. One ranked attempt per day.

Plumbing by the numbers

Real figures with their sources. All Plumbing facts →

lead (Latin plumbum)

The word 'plumber' comes from the Latin word for which material?

A medieval plumber was 'a worker in any sort of lead' — roofs, gutters and pipes. It's also why lead's chemical symbol is Pb.

Source: Online Etymology Dictionary, plumber (2024) etymonline.com

nearly 1 trillion gallons

How much water can household leaks waste across the U.S. each year?

Worn toilet flappers, dripping faucets and leaky valves are the usual culprits — which is why the EPA runs an annual Fix a Leak Week.

Source: U.S. EPA WaterSense, Fix a Leak Week (2025) epa.gov

What people think about plumbing

Vote to see the live results. All polls →

Plumbing problem at home — what do you do first?

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Which plumbing problem is the worst?

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Would you consider a career in the trades?

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Questions

How does PlumbingSurvey.com work?

Each question asks you to guess a real number about plumbing. After you answer you see how everyone else guessed, then the real figure and where it comes from.

How is the daily round scored?

Four stats and one opinion poll. A correct guess earns 100 points plus up to 50 for speed, with a combo bonus for answers in a row. The range next to the right answer earns 40. Opinion polls earn 25 for having your say, and nailing every stat adds 150.

Where do the numbers come from?

Every stat links to its source, such as government statistics agencies, research organizations and industry groups. Figures are checked against the source before they go live.

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