Five pool-robot buying mistakes to avoid

The most common ways pool owners end up with the wrong robot.

By The PoolBot Guide team · Oct 23, 2026

Pool robots are a big purchase, and returns are a hassle when the box is heavy and the robot is wet. Avoid these mistakes.

1. Buying for a smaller pool

A rating is a maximum under ideal conditions. If your pool is 1,500 sq ft, a robot rated for 1,600 sq ft, like the Aiper Scuba S1, will be working at its limit.^[3] Leave headroom, and use our size checker.

2. Ignoring the waterline

The scum line at the water’s edge is the most visible dirt in a pool. If it bothers you, choose a robot that cleans walls and waterline.^[1]

3. Expecting it to handle leaves on the surface

Most robots clean below the surface only. Floating debris needs a skimmer or a robot that skims, such as the AquaSense 2 Ultra.^[2]

4. Forgetting about the lift

A wet robot full of water is heavy. Look for quick-drain designs or buy a caddy.

5. Not checking pool type

Some robots are for in-ground pools only. The Nautilus CC Plus is one.^[5] Above-ground pool owners should check compatibility before buying.

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