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The Ultimate Tankless Toilet Quiz
by Staff
How does a tankless toilet flush? How does it compare with a traditional toilet? See if you can complete this tankless task by answering these quiz questions.

Why do most toilets have tanks?

  • to provide enough water to activate the siphon effect that flushes the toilet
  • because they look nice esthetically
  • to properly wash away all waste matter

How do tankless toilets manage without tanks?

  • They use extra gallons of water for flushing, because there is limited water pressure.
  • They allow the waste to accumulate in order to provide enough pressure for it to be drained away.
  • They rely on a water pipe that has strong enough water pressure to flush the waste in one foul swoop.

Who is attributed as the inventor of the tank toilet?

  • Queen Elizabeth I
  • English poet John Harington
  • Sir Walter Raleigh

When did Sloan Valve Company invent the first flush-valve toilet?

  • 1890
  • 1906
  • 1920

During the 20th century, increasing population resulted in the construction of high-rise living. How did this affect toilets?

  • Space was at a premium, so toilets were designed with the tank up on the wall.
  • High-rise living meant only one toilet for every two apartments.
  • No new toilet designs were created until the population increase slowed down a little.

What is a flushometer?

  • a toilet that has a water meter attached to it
  • a type of toilet that uses a chain-pull for flushing
  • another name for a tankless toilet

How do tank toilets and tankless toilets compare in terms of water pressure?

  • Tank toilets use low water pressure: 20 pounds per square inch (psi).
  • Tankless toilets use four times the water pressure of tank toilets.
  • Tank toilets use about half the water pressure of tankless toilets.

How is high water pressure in a tankless toilet achieved?

  • The water is sent down the line at great speed, sometimes through larger-than-usual pipes.
  • The water is churned around at high speed till the pressure builds up.
  • The water molecules are packed together at ever increasing density, causing pressure to build up.

Do public urinals usually use tankless systems or tank toilets?

  • tank toilets
  • tankless systems
  • both tankless systems and tank toilets

How much control does the average homeowner have over the flush volume in a tankless toilet?

  • You have no choice regarding flush volume, because it's controlled by the government.
  • You can alter the flush volume at will, provided you pay the water bill.
  • You can make small adjustments to conserve water, but in many countries you are bound by prescribed national standards.

What is the U.S. Department of Energy standard for toilet water usage?

  • 1 gallon (3.8 liters) of water for urinals and 1.6 gallons (6 liters) for regular toilets
  • 1.5 gallons (5.6 liters) of water for urinals and 2 gallons (7.5 liters) for regular toilets
  • 1 gallon (3.8 liters) of water for both urinals and regular toilets

What is the main benefit of hands-free flushing?

  • You save a lot of water.
  • You don't need to wash your hands after going to the bathroom.
  • It inhibits the spreading of germs.

What could go wrong with hands-free flushing technology?

  • It could clog up more often than a regular flusher.
  • It could leave waste matter unflushed or it could waste water.
  • It could reverse the water flow in the pipes if it is not correctly flushed.

Why are tankless toilets more commonly used in commercial facilities than in private homes?

  • because they cost so much
  • because they require a powerful flush, which can only be assured in commercial enterprises
  • because they have yet to be discovered for home use

Why do many apartments in New York City have tankless toilets?

  • because that's the New York City Council requirements
  • because it's in vogue there
  • because the old apartments were built very compact with little space for toilet tanks

Which of these are downsides to the tankless toilet?

  • the size and the design
  • the expense and the noise
  • the water consumption and the piping required

Kohler's Power Lite toilet and TOTO's Neorest run on electricity. What happens to them during an electrical outage?

  • They work, using the back-up battery.
  • They don't work.
  • A gas back-up system kicks in.

Why do some people use a concealed tank toilet?

  • because they save space
  • because they prefer not to see the unsightly tank
  • because they see the environmental benefits of the concealed tank toilet

What bonus comfort features might a tankless toilet offer?

  • a read-while-you-sit feature and a music background mode
  • a heated seat, spray massage and an air purification system
  • an elevated-seat mode for tall users and a perfumed flush

What percentage of your home water consumption do toilets account for?

  • about 10 percent
  • about 30 percent
  • up to 50 percent