# Chasing Hydro 4 SE review

Corded pool robot with a 40 ft cable and 3 hour auto cycles

- Our score: not scored yet
- Price: $449 (checked Nov 4, 2026)
- Status: on sale
- Best for: medium pools where a cord is not a problem
- Skip if: you want app control while it is underwater
- HTML version: https://robotsforthat.com/robot/chasing-hydro-4-se/

## Verdict

A simple corded robot for owners who want no charging and a set 1 to 3 hour cycle. Independent testing is thin: one hands on blog review found it picked up leaves and silt well but said its path was not always efficient and corners and steps still needed brushing. Skip it if you dislike managing a cable or want app control while the robot is underwater.

## Pros

- No battery to charge or wear out
- Fixed 1, 2 or 3 hour auto cycles
- Large 4.1 L basket with optional fine filter
- 2 year warranty

## Cons

- Few independent tests yet
- Cable to manage
- No app control underwater
- Reviewer saw uneven paths and missed corners

## Specs

- pool types: In ground and above ground, 1.6 to 9.8 ft deep; salt up to 5,000 ppm (Chasing and RobotShop)
- cleans: Floor, walls and waterline (Chasing says)
- power: Corded AC, 150 W peak, 39.4 ft (12 m) cable per the spec table; box contents say 40 ft (Chasing)
- runtime: Auto cycles of 1, 2 or 3 h; wall only 2 h; floor only 2 h; Ultra Clean 3 h (Chasing says)
- charge time: None needed, corded
- filter: 180 micron dual zone basket, 4.1 L; optional 50 micron basket (Chasing says)
- max pool size: Up to 1,614 sq ft (Chasing says)
- app: Chasing app with scheduled start; no underwater control (Chasing comparison table); Happy TechFam found Bluetooth drops once submerged
- weight: 14.3 lb, 6.5 kg robot plus 2.9 lb control box (Chasing says)
- warranty: 2 years (Chasing store)

## Safety

- recalls: Not checked
- fcc: Not checked
- company status: Active
- warranty: 2 years

## Questions buyers ask

### How long is the Hydro 4 SE cable?

Chasing's spec table says 39.4 ft (12 m), and its box contents list a 40 ft cable.

### Can I control it from the app while it cleans?

No. Chasing's comparison table lists underwater control as not supported, and a reviewer found Bluetooth drops once it is submerged.

### Does it work in saltwater pools?

Chasing's spec sheet on RobotShop lists salt up to 5,000 ppm.

## Sources

1. [Chasing US store: Hydro 4 SE](https://www.chasingcleaner.com/products/hydro-4se-corded-robotic-pool-cleaner)
2. [RobotShop: Chasing Hydro 4 SE spec sheet](https://www.robotshop.com/products/chasing-hydro4se-robotic-pool-cleaner)
3. [Happy TechFam: Chasing Poolmate Hydro 4 SE review](https://happytechfam.online/review-the-chasing-poolmate-hydro-4-se-pool-robot-cleaner-for-effortless-pool-maintenance/)
4. [Greattips3s: Chasing Hydro 4 SE review](https://www.greattips3s.com/2026/04/chasing-hydro-4-se-review-corded-pool.html)
5. [Barchart: Poolmate by Chasing lineup press release](https://www.barchart.com/story/news/32500075/poolmate-unveils-new-automated-pool-cleaners-the-future-of-backyard-luxury)