The Ultimate Dual Flush Toilet Quiz

By: Staff

4 Min Quiz

Image: refer to hsw

About This Quiz

The dual flush toilet is a water-saving milestone in the history of indoor plumbing. Learn how dual flush toilets work and how they can replace older toilets.

Who invented the modern toilet?

Though Thomas Crapper did invent some gadgets that refined toilet technology, he is not actually the inventor of the modern toilet. The modern toilet design evolved over several centuries through contributions from many people.

Advertisement

When was the first flush toilet patent filed?

London watchmaker Alexander Cummings filed the first flush toilet patent in 1775.

Advertisement

What was a milestone moment in the history of plumbing in America?

Believe it or not, Americans were so used to their outhouses that they initially resisted moving their toilets indoors!

Advertisement

Which of the following characteristics is distinct to the shelf toilet?

Though it may be hard to fathom, many European countries use the shelf toilet, which separates liquid and solid waste so you can inspect your poop for any health problems before it goes down the drain.

Advertisement

Dual flush toilets have caught on in which water-challenged country?

In countries where water is scarce, like Australia, dual flush toilets that let you use more or less water are a popular choice.

Advertisement

How much water do modern dual flush toilets use to flush liquid waste?

Dual flush toilets wash away liquid with less than a gallon of water (about 3 liters) and solids with just 1.6 gallons (6 liters). Older toilets use as much as 5 gallons (19 liters) for each flush.

Advertisement

What was the plumbing breakthrough that paved the way for dual flush technology?

In 1980, an Australian named Bruce Thompson of Caroma Industries developed the first two-button flushing system that allowed you to manually choose the water volume for each individual flush, which led to the dual flush toilet.

Advertisement

Dual flush toilets employ what method to flush waste?

Unlike standard toilets that use a siphoning tube to get rid of waste, the dual flush toilet is designed with a large trapway and a wash-down flushing action.

Advertisement

When should you use a full flush with a dual flush toilet?

With a dual flush toilet, full flushes are used only for solid waste. Water is conserved by using only half-flushes for liquid waste.

Advertisement

What is the main cosmetic drawback of the dual flush toilet?

Since dual flush toilets retain only a small amount of water in the bottom of the bowl, fastidious housekeepers might find the bowl does not stay as clean as they like.

Advertisement

When replacing your standard toilet with a dual flush model, which measurement is most important?

When buying a new dual flush toilet, make sure you know your toilet's standard rough-in measurement, which is usually 12 inches (30.48 centimeters). If you don't do this, your new toilet may not fit.

Advertisement

What is the first step to install a new toilet?

Before you do anything else, you should turn off the water supply to the toilet so you won't have a messy flood to deal with.

Advertisement

How do retrofit kits that convert your standard toilet to dual flush work?

If you want the advantages of a dual flush toilet but don't want the mess or expense of a full replacement, go for a retrofit kit that lets you choose a full or partial flush.

Advertisement

What is the last step when installing a new toilet of any type?

Install the toilet seat, then reconnect the supply hose. Last of all, turn on the water supply to the toilet.

Advertisement

Which law governs toilet water conservation in the United States?

The National Energy Policy Act was signed into law in 1994, mandating that toilets marketed in the U.S. consume less than 1.6 gallons (six liters) of water per flush.

Advertisement

How do local and state governments encourage consumers to invest in more water-efficient toilet technologies?

Local and state governments encourage the switch to water-conserving toilet technologies by offering tax incentives and rebates to consumers.

Advertisement

Toilets account for approximately how much of the average home's indoor water usage?

According to the U.S. Environmental Protection Agency's WaterSense program, toilets hog nearly 30 percent of a home's total indoor water consumption.

Advertisement

How many times a day does the average person flush the toilet?

The average person flushes the toilet between five and eight times a day. If you're using an older toilet, that's between 25 gallons (95 liters) and 40 gallons (150 liters) of water a day -- literally, right down the drain!

Advertisement

How many gallons of water could Americans save each day by upgrading their older toilets to new dual flush toilets?

Replacing all the older water-wasting toilets in the United States would save a staggering 2 billion gallons (7.6 billion liters) of water each day!

Advertisement

What is the biggest threat to our water supply?

In the coming years, the water needs of a growing population threaten to overwhelm much of the world, including many U.S. states.

Advertisement

Explore More Quizzes

About HowStuffWorks Play

How much do you know about dinosaurs? What is an octane rating? And how do you use a proper noun? Lucky for you, HowStuffWorks Play is here to help. Our award-winning website offers reliable, easy-to-understand explanations about how the world works. From fun quizzes that bring joy to your day, to compelling photography and fascinating lists, HowStuffWorks Play offers something for everyone. Sometimes we explain how stuff works, other times, we ask you, but we’re always exploring in the name of fun! Because learning is fun, so stick with us!