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Roto-Rooter

Roto-Rooter is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Roto-Rooter rather than just read about it. In short: Roto-Rooter Plumbing & Water Cleanup (formerly called Roto-Rooter Plumbing & Drain Service) is a plumbing company based in Cincinnati, Ohio. The company, founded in 1935, originally specialized in clearing tree roots and other obstructions from sewer lines.

Roto-Rooter — main illustration
Roto-Rooter — illustration

Key takeaways

  • Roto-Rooter belongs to science; place it in that map before memorising details.
  • Learn the definition first, then one example that makes the definition concrete.
  • Connect Roto-Rooter to a quantity you can measure, compute or draw — that is where exam questions come from.
  • Reproduce the core statement of Roto-Rooter from memory before moving on to harder problems.

Reference excerpt

Roto-Rooter Plumbing & Water Cleanup (formerly called Roto-Rooter Plumbing & Drain Service) is a plumbing company based in Cincinnati, Ohio. The company, founded in 1935, originally specialized in clearing tree roots and other obstructions from sewer lines. As of 2020, it employs thousands of plumbers, and service technicians throughout the US and Canada who provide plumbing and sewer and water damage cleanup services. Roto-Rooter also employs manufacturing technicians and assembly workers at its manufacturing plant in West Des Moines, Iowa. The plant manufactures the company's patented, proprietary Roto-Rooter sewer and drain cleaning machines as well as sewer and drain cleaning cables and blades. Roto-Rooter is one of the two subsidiary divisions of the publicly traded Chemed, of which the other one is a hospice care provider VITAS Healthcare.

Early years

In the late 1920s, Samuel Oscar Blanc (1883–1964) was cleaning a blocked sewer at his son's (Milton L. Blanc) Des Moines, Iowa, apartment to seek a better solution than digging up the sewer line to remove tree roots that had invaded the underground sewer pipe. By 1933, Samuel Blanc had fashioned a sewer-cleaning machine from a washing machine motor, wheels from a child's little red wagon, and a 3⁄8-inch (9.5 mm) steel cable. The cable rotated with a sharp C-shaped blade attached to the tip. The rotating motion cut tree roots out of sewer lines, eliminating the need to dig up pipes and clear obstructions by hand, thus inventing the world's first heavy-duty plumber's snake. Blanc's wife, Lettie (née Lettie Jensen), called his invention the "Roto-Rooter". By the mid-1930s, Blanc was selling his patented "Roto-Rooter" machines for $250 and incorporated a business around it called Roto-Rooter Corporation. Many in need during the Great Depression started their own Roto-Rooter businesses throughout the upper Midwest, the Great Plains, and the Northeast. Roto-Rooter's sewer cleaning service allowed homeowners to avoid digging up lawns and landscaping to reach underground sewer pipes. This breakthrough was a revolutionary concept. In the 1930s and 40s, Roto-Rooter featured an illustration of a mound of dirt over a recently excavated sewer pipe with the caption, "Why put a grave in your yard?" In 1939, after his Roto-Rooter sewer cleaning machine proved successful, Sam Blanc designed and built a smaller model that operated on the same principle but could clean and clear bathroom and kitchen sink drains as well as laundry drains and other household plumbing drains. Blanc also built a much larger version of the Roto-Rooter machine called the Roto-Rooter Royal. It had to be towed by a truck and featured a 10-horsepower gasoline engine and 1000 feet of steel cable. It was capable of cleaning large industrial and municipal sewer pipes. An improved version called "The Mainliner" was introduced in 1958 that could also thread telephone cable. It was discontinued in 1973.

Company sale In 1980, the Blanc family sold Roto-Rooter Corporation to Cincinnati-based Chemed Corporation. Chemed began purchasing independent Roto-Rooter franchises and operating them as company-owned service locations under the newly formed Roto-Rooter Services Company, whose corporate headquarters is in downtown Cincinnati. Chemed sold off some of its holdings in Roto-Rooter in both 1984 and 1985, bringing its ownership stake to just below 60%, but launched a bid in 1996 to reacquire the 42% of shares that it had sold off.

In the 1980s, some Roto-Rooter franchises and company-owned locations began to offer around-the-clock service and general full-service plumbing repair for both residential and commercial customers. Roto-Rooter's plumbing services represent a major part of the company's business. The company has more than 600 service locations operating throughout North America that serve more than 90% of the US population in all fifty states, and more than 40% of the Canadian population. Roto-Rooter is the largest provider of plumbing repair and sewer and drain cleaning services in both countries. International franchise operations have been established in Canada, Japan, the Philippines, Hong Kong, Indonesia, Singapore, Brazil, South Africa, and Australia.

Corporate identity

Original logo For the first five years of Roto-Rooter's existence (1935–1940), the company had no official logo and allowed its franchisees to paint their trucks however they saw fit. Due to copycat imitators, Roto-Rooter unveiled the first official Roto-Rooter logo in November 1940. The logo featured the patented Roto-Rooter electric sewer cleaning machine inside of an outline of the United States proclaiming, "A Specialized Service From Coast-to-Coast". The new emblem was used on service vehicles, on guarantees, and in all advertising to help homeowners select the original Roto-Rooter.

1953–1979 In 1953, Roto-Rooter updated the logo to a much simpler design which incorporated a new black and white font with "SEWER-DRAIN SERVICE" inside a drainpipe. This logo was used from 1953 through the 1970s. The only update made to this design was switching out the black outline to a blue outline.

1980–1995 By 1980, Roto-Rooter was in need of an updated logo for its service vans and equipment. The new logo for the 1980s was a refreshed version of the previous logo. The new logo was all blue and eliminated the rightward slant of the previous logo, standing up straight the letters of the Roto-Rooter name. The drainpipe portion was also updated to include more waves.

1996–present In 1996, the Roto-Rooter Visual Identity Program introduced a new logo to replace all previous logos. Variations of this design are still used to this day by Roto-Rooter locations in the United States, Canada, and around the world. The only variation since its introduction was the addition of a single-line logo to complement the over-and-under version. Since the single-line logo uses the same font, it is considered an extension of the other logo.

Advertising

Razor-Kleen! In the 1930s and 1940s, Roto-Rooter service vehicles bore the slogan "Roto-Rooter's patented cutting blades slice through roots and cut them away ... Razor-Kleen!"

Away go troubles down the drain The Roto-Rooter advertising jingle used today on TV and radio was created in 1954 and has been one of the longest-running and best-remembered musical jingles in history:

… excerpt ends here. Continue reading the full article.

Illustrations

Roto-Rooter illustration
Roto-Rooter: Sam Blanc with an early Roto-Rooter sewer cleaning machine
Sam Blanc with an early Roto-Rooter sewer cleaning machine
Roto-Rooter: Roto-Rooter serviceman cleans a main sewer from a basement cleanout access point with one of the company's sewer cleaning machines.
Roto-Rooter serviceman cleans a main sewer from a basement cleanout access point with one of the company's sewer cleaning machines.
Roto-Rooter illustration
Roto-Rooter illustration

Worked examples

Example 1 — a first encounter with Roto-Rooter

Start with the simplest possible case. Write down what Roto-Rooter claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Roto-Rooter before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Roto-Rooter ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Roto-Rooter

In research
Roto-Rooter appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry
Engineering practice reuses Roto-Rooter in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom
Roto-Rooter is common in secondary-school and first-year university syllabi. It links to neighbouring topics American companies established in 1935, American inventions, Business services companies established in 1935, so understanding it makes those chapters shorter.
In everyday life
Look for Roto-Rooter outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Roto-Rooter in 20 minutes

  1. Read the reference excerpt below once, without taking notes.
  2. Close the page and write down what Roto-Rooter means in your own words.
  3. Compare your version with the excerpt and mark what you missed.
  4. Work through the three examples above with pen and paper.
  5. Explain Roto-Rooter out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Roto-Rooter in simple terms?

Roto-Rooter Plumbing & Water Cleanup (formerly called Roto-Rooter Plumbing & Drain Service) is a plumbing company based in Cincinnati, Ohio. The company, founded in 1935, originally specialized in clearing tree roots and other obstructions from sewer lines.

Why does Roto-Rooter matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Roto-Rooter?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Roto-Rooter.

Tags

  • American companies established in 1935
  • American inventions
  • Business services companies established in 1935
  • Cleaning companies of the United States
  • Companies based in Cincinnati
  • Plumbing

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