Robotic vs Suction Pool Cleaner: Which Is Better?
Robotic vs suction-side pool cleaner compared: cleaning quality, energy use, load on your filter, walls and waterline, and running cost.
The short version
A robotic cleaner runs on its own low-voltage motor, filters debris into its own basket and scrubs walls and the waterline. A suction cleaner is cheaper but runs off your pump, so it adds hours of pump time and pushes all the debris into your filter. Buy the robot if you want less work and lower pump running cost; buy the suction cleaner if the upfront price is the constraint.
At a glance
| Dolphin Nautilus CC Robotic Cleaner | Zodiac G3 Suction-Side Cleaner | |
|---|---|---|
| Power source | Its own low-voltage motor | Your pool pump |
| Debris goes to | Its own basket | Your filter and pump basket |
| Cleans walls and waterline | Yes | Limited |
| Adds pump run time | No | Yes, several hours |
| Filter load | None | Significant |
| Upfront price | Higher | Lower |
Choose the Dolphin Nautilus CC Robotic Cleaner if…
You want the pool clean without thinking about it, and you would rather not run the pump longer to achieve it. Because a robot filters into its own basket, it also reduces how often you backwash or clean cartridges, which saves both water and effort.
Check Dolphin Nautilus CC Robotic Cleaner on Amazon
Choose the Zodiac G3 Suction-Side Cleaner if…
The upfront cost matters most and you already run the pump for long periods anyway. It cleans the floor well, has no electronics to fail, and there is very little to go wrong mechanically.
Check Zodiac G3 Suction-Side Cleaner on Amazon
Related
Comparison based on published manufacturer specifications and the general consensus of owner reports. We have not tested these products side by side. Confirm current specifications and prices before buying. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.
Frequently Asked Questions
Does a robot really save money?
Often, yes, over a few seasons. A suction cleaner needs the main pump running, and a pool pump is one of the largest electrical loads in a house. A robot draws a fraction of that and runs independently.
How long should I run my pump each day?
Long enough to turn over the water roughly once, which varies with pump size and pool volume. Our pump run time calculator works this out; running a single-speed pump around the clock is the most common way people overpay.
Will a cleaner replace brushing?
Not entirely. Robots scrub far more than suction cleaners, but corners, steps and behind ladders still need a brush. Brushing also disturbs algae before it can take hold.
Taking care of a pool?
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