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Why a Long Cable is Important When Choosing a Robotic Pool Cleaner

A robotic pool cleaner is a real game-changer. Having a trusty robot at your side reduces how much manual labor you have to do, meaning that you can actually enjoy your pool rather than suffer to keep it swim-ready for others.

If you have yet to purchase a robotic pool cleaner, please take your time in your research. Some robots can cost upwards of $1,000, and the last thing anyone wants is to spend a small fortune on a robotic pool cleaner that isn’t even compatible in their pools.

There are all sorts of key considerations to take into account, but in this guide, we’re going to focus specifically on the cable length and why it matters.

Aquabot Robotic Pool Cleaner
Aquabot Robotic Pool Cleaner

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What Cable Are We Talking About?

The way a robotic pool cleaner works is it draws power from a remote control module via a cable. This cable goes by many names, including floating cable and swivel cable. Regardless of what you call it, it serves one purpose: to supply power to your robot.

Modern-day robots don’t have to deal with tangling, thanks to the 360-degree swiveling feature. The swiveling mechanism lets your robot twist, turn, and perform 180-degree turns without excessive tugging and possible kinking.

As great as a swivel cord is, it won’t help if your robot’s cable is too short for your pool.

Cable of Robotic Pool Cleaner
Cable of Robotic Pool Cleaner

How Long of a Cable Do I Need?

The ideal cable length depends on the size of your swimming pool. For obvious reasons, the cable should be long enough to provide the robot free-range movement from corner to corner without pulling the cord.

Your robot’s movement range is highly dependent on how much cabling it has. The length of the cable is of grave importance as it is an indication of what size pool the robot can clean—e.g., a robotic pool cleaner with a 40-foot cable will be incapable of reaching all four sides of a 70-foot-long swimming pool.

To illustrate the ideal cable length, there are several key factors to keep in mind:

  • The distance between the controller module and your pool
  • The distance between the two widest points of your pool
  • The maximum depth of your pool
  • Add 5-10 feet to allow for slack in the cable
Dolphin Robotic Pool Cleaner
Dolphin Robotic Pool Cleaner

So, for instance, let’s say you’ve followed the instruction manual and 1) placed the controller module 10 feet away from the shallow end of your pool and 2) that your rectangular pool measures 20 feet wide by 40 feet long with a maximum depth of 10 feet. So, the widest points between your pool—i.e., the distance between the top-left corner to the bottom-right—is roughly 23 feet.

The ideal cable length for your robotic pool cleaner would be at least 10 feet + 23 feet + 10 feet + 10 feet = 53 feet. Any robotic pool cleaner with a 53-plus-foot cable would be ideal for such a swimming pool.

Robotic Pool Cleaner with Cable
Robotic Pool Cleaner with Cable

The larger your swimming pool is, the longer your robotic pool cleaner’s cable has to be to reach all four corners of your pool in one cleaning session. If a robotic pool cleaner’s cable is too short, consider searching for another robot or finding one that lets you connect cable extensions (sold separately from the robot unit).


Our Recommended Robotic Pool Cleaners

Affordable Option The Dolphin Nautilus CC Plus is perfect for all pool types. From gunite to tile, and everything in between; you name it and Dolphin will clean it.

Best of the Best The Dolphin Dolphin Nautilus CC Supreme is equipped with a center scrubbing brush, this cleaner pushes the limits for wall and waterline cleaning.

Popular Option Smart Nav software delivers highly optimized scanning and coverage for a new level of clean. Advanced algorithms clean 100% of the pool floor, wall & tile/waterline and pool floor.

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Related Robotic Pool Cleaner Articles

 • How Does A Robotic Pool Cleaner Work?
 • How to Use a Robotic Pool Cleaner
 • What Features to Look For in a Robotic Pool Cleaner?
 • How to Maintain a Robotic Pool Cleaner?
 • Robotic Pool Cleaner Troubleshooting Tips
 • What is a Swivel Cord?
 • Pressure vs. Suction vs. Robotic Pool Cleaners


If you have any questions or comments, please add them below in the comment section. Similarly, please let us know if you spot any mistakes or omissions. Thanks!


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About the author

Hi I’m Alex, founder of HouseholdMe.com and I’d like to say thank you for dropping by. Like most of you, the first thing I look at before buying something online is reviews or buying guides. By reading what other people say will help me gauge whether or not a product is good or not.  I am trying to help people find answers, solve problems, and get inspired.

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