Hayward PHS21CST Review - Key features and performance

Hayward PHS21CST Review – Key features and performance

A great way to start the summer is dipping yourself into a pool. It’s the relaxing way to start your summer against the heat that the sun radiates into your skin. But nonetheless, before soaking yourself into a pool, it is important that you’ll be able to prioritise the safety and cleanliness of the pool that you’ll be using. Since you will be spending more time in the pool, you have to clean every now and then the pool.

However, there’s no need to do that. The Hayward PHS21CST AquaNaut Suction Pool Vacuum is manufactured to clean efficiently your pools with its highly innovative technology and patented mechanism that will truly take your summer extra special.

Hayward PHS21CST Review - Key features and performance

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[mks_tab_item title=”Pros“]

  • Easy to Install and Use
  • Versatile to any pools and pumps
  • Empowering Suction Mechanism
  • Multiple Pre-Programmed Steering Sequences
  • Handles Variety of Dirt and Contaminants

[mks_tab_item title=”Cons“]

Weak Climbing Ability

Though the device is advertised for climbing, it supposedly does not mean side walls of the pool. It has a poor climbing capability and most of the time, you’ll have to clean the corners and brush the walls as required. Despite the limitation, the device is definitely better for the price you’ll get as compared to other similar brands with a weak yet still reliable climbing performance.

Short Length Vacuum Hose

Driven with a hose measuring about 33 inches, it does not cater very large sized pools. Thus, you have to buy an extension hose to facilitate the process. Anyways, the device works for any type of pumps so it’s definitely easy to find a hose that will suit your tastes.


Hayward PHS21CST Review – Performance at a glance

Key Feature of the Hayward PHS21CST AquaNaut Suction Pool Cleaner

State-of-the-Art Suction Technology
Governing with a patented V-Flex Technology, this device works powerfully allowing multiple debris sizes to pass through the cleaner without clogging in. This technology is fabricated with self-adjusting variable vanes to cater these debris sizes as needed. It induces not just power but efficiency on delivering suction performance into the pools.

Speedy Cleaning
The device is innovated with a pre-programmed internal steering system that skillfully maneuvers around multiple corners of the pool. It incorporates an adjustable two or four-wheeled rollers that are well-patented to allow cleaning to multiple surfaces either concrete, vinyl tile, fiberglass, vinyl, or even pebbled.

Durably Manufactured
This suction pool cleaner finished mainly in blue and white color is heavily made from plastic and rubber parts. Consequently, its rollers are patented with threads on its sides and consists of three interchangeable throats to improve its suction ability.

Weighing about 16 pounds, this device is easily be maneuvered around into the pool. Nevertheless, you could readily store this pool cleaner into a secure location because of its non-bulky size with dimensions of 11 x 9 x 8.5 inches.

Versatile Cleaning Operation
The device works into pool sizes up to 16 inches by 32 inches dimensions. It could be used into angled and uneven surfaces with a variety of textures into it. Aside from that, the pool cleaner operates through a pump with a minimal power requirement of 35 gpm.

What users saying about Hayward PHS21CST

Bought at a very affordable price, a lot of users are happy with purchasing the device. It’s easy setup with a compact design suited to run for multiple hours in the pool. Most of the customers who used the device was quite fascinated with the operation of the device.

According to some users, you’ll just need to adjust the settings to the pool in order to fully appreciate the performance of the device. Nevertheless, its easy setup with a responsive interface. It cleans well through floors but not that reliable into surfaces where the device needs to climb. It has a climbing ability yet still weak for utilization.

Buy on Amazon

However, few of the users with the device are not well-convinced with the material of construction that the device comprises. It’s heavily plastic build which most users are bothered with in terms of longevity. But nonetheless, it has an excellent overall 4 out of 5 rating on Amazon for which is astounding for a pool cleaner.

Compare with Dolphin 99996403-PC vs. Hayward PHS21CST Pool Cleaner

Generally, both devices are way different from each other. It’s quite obvious that Dolphin has more its edge in terms of design, durability, and performance. Though Hayward is empowered with multiple and patented suction technologies, Dolphin offers much broader capabilities that you should consider on.

The Dolphin 99996403-PC is built compactly with heavily dispersed PVC bristled brushes on its wheels for which the latter does not have. Aside from that, its empowered with 360-degree suction technology that allows it to climb to widely angled surfaces. It also has an intuitive cartridge filter system to easily clean for which Hayward lacks. Nevertheless, it has a great filtering system though not as innovative as Dolphin’s.

In terms of portability and weight, Hayward has its edge. Dolphin 99996403-PC is heavier by about four pounds than the former. Dolp similarly to Hayward has exteriors made from plastic. It induces a black and blue color. Similarly to Hayward, it has a handle to easily carry the device anywhere.

Comparing both of device’s prices, Hayward PHS21CST is three times cheaper than the latter. Nevertheless, it is an entry level pool cleaner that does not share the same market with the Dolphin’s pool cleaner.

Overall, it’s up to the user what he would consider. If he’ll consider durability and performance, it would be Dolphin. If looking only to its price and practicality, then he’ll go with Hayward.

What’s the disadvantage of the Hayward PHS21CST Automatic pool vacuum

For its cheap price, you don’t expect much with this device. Though it has great features with patented technology incorporated in it, the device is not recommended for long-term utilization. Yes, it’s durable but not for the long run. It also lacks some features with no climbing and weak filter cleaning capability.


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The Hayward PHS21CST also has short length cable, heavily plastic made. But nonetheless, it has a decent suction performance and totally cleans the surface of the floors within the pool accommodating multiple types of dirt and contaminants.

How reasonable is the price according to the Hayward PHS21CST specs?

Definitely, the price is reasonable for the quality you’ll get. Comparing to other entry-level pool cleaners, it has an edge in terms of suction capability and technology. Also, it cleans efficiently catering multiple pool sizes and textures intuitively.

Aside from that, it quickly cleans your pool without manually operating it. There’s really nothing to complain about the device except for its climbing capability and short length hose.

Hayward PHS21CST AquaNaut Suction Pool Vacuum (Automatic Pool Cleaner)
  • HANDLES LARGE DEBRIS WITHOUT CLOGGING: Patented V-Flex variable vane turbine technology eliminates clogs and maximizes...
  • EXPERTLY NAVIGATES ANY SURFACE: Patented high-traction tires with rugged treads provide superior climbing power and...
  • MAINTAINS CONSTANT SUCTION: Patented adjustable roller skirt maintains optimal suction on uneven surfaces.

Final Verdicts

Overall, if you are thinking to purchase a cheap and entry level pool cleaner, then this latest Hayward PHS21CST Automatic pool vacuum cleaner is recommended. It performs efficiently pool surfaces without much effort. Thus, it maintains the cleanliness of your pools as needed. Though it has multiple drawbacks, the device has still a lot of things to offer given the price that you are going to pay.

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Last update on 2022-08-10 at 05:32 / Affiliate links / Images from Amazon Product Advertising API

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