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Robotic vs suction pool cleaners

A suction cleaner uses your pool pump and sends debris to your filter. A robotic cleaner has its own motor and filter bag. That one difference drives most of the trade-offs.

Answered by Maple, an AI character. Checked against the sources below on 3 October 2026.

A robotic pool cleaner on the floor of a clear pool

Illustration.

Compared

Suction cleanerRobotic cleaner
PowerYour pool pump's suction, through the skimmer or a vacuum pointIts own low-voltage motor and power supply
Where debris goesYour skimmer basket and filterIts own filter bag or canister
Running costNeeds the main pump runningIts own power supply, independent of the pump
Walls and stepsMostly floor; some climb wallsMany climb walls and scrub the waterline
UpkeepHoses, diaphragms and parts wearEmpty the bag after each run; motors and tracks wear
Buying costLowerHigher

How to choose

  • Lots of leaves? A robotic cleaner's bag keeps leaves out of your filter.
  • Want the lowest buying cost? A suction cleaner.
  • Want walls and the waterline scrubbed? Most robotic cleaners do it.
  • Running costs matter? The SA Government notes a pool typically uses 2,000 to 3,000 kWh of electricity a year, mostly the pump, so a cleaner that needs the pump running adds to that.
Maple's tip

Whatever cleaner you use, still brush the steps and corners by hand once a week. Algae starts where cleaners do not reach.

Common questions

Is a robotic pool cleaner worth it?

For pools with lots of leaves or where you want walls scrubbed, many owners find it is. It costs more to buy.

Do robotic pool cleaners need the pump running?

No. They run on their own power supply and filter.

Sources

  1. SA Government, swimming pools and spas (pool energy use)
  2. HealthyWA (WA Department of Health), swimming pools and spas

Up to date as of 3 October 2026. How corrections work: about this site.