Product Overview

The Hayward AquaRite S3 Salt System | AQRS340 is an advanced salt chlorination and pool control system designed for in-ground pools up to 40,000 gallons. It automatically generates chlorine from salt to help maintain clean, clear, comfortable pool water while reducing the need for traditional chlorine handling.

The AquaRite S3 features an easy-to-use LCD color display for monitoring and adjusting chlorine output, and it offers built-in control capabilities for compatible pool equipment such as heaters and variable-speed pumps. It also operates across a broad salt range, giving pool owners and service professionals more flexibility when maintaining proper water chemistry.

This system is intended for properly equipped in-ground pools and should be installed by a qualified pool professional or licensed electrician.

Ideal For

In-ground residential pools up to 40,000 gallons
Pool owners upgrading to salt chlorination
Customers who want easier chlorine management
Compatible pool systems using Hayward automation/control features
Pools with compatible heaters or variable-speed pumps
New pool construction or equipment pad upgrades
Pool professionals installing Hayward AquaRite S3 systems

What’s Included

Hayward AquaRite S3 control system
Salt chlorination system components included with manufacturer packaging
LCD color display interface
Salt cell for pools up to 40,000 gallons
Manufacturer-supplied installation components

What’s Not Included

Installation labor
Pool salt
Additional plumbing fittings unless included by manufacturer packaging
Electrical wiring materials
Smart relay for single-speed pump control
Omni upgrade kit
Additional automation accessories
Replacement cell stand or cleaning accessories
Water chemistry balancing chemicals
Professional startup service

Compatibility Guidance

The Hayward AquaRite S3 AQRS340 is designed for in-ground pools up to 40,000 gallons. It is not selected by pool surface alone, but pool surface type matters because salt systems require proper water balance, correct bonding, and compatible pool materials.

Pool Surface / Pool Type Compatibility

This system may be used on properly maintained plaster, pebble, quartz, tile, fiberglass, and vinyl liner in-ground pools when water chemistry is kept within recommended ranges.

Before ordering or installing, confirm the following:

Your pool is in-ground and does not exceed 40,000 gallons.
Your pool surface is in good condition and compatible with salt chlorination.
Your pool has proper electrical bonding and grounding.
Your equipment pad has space for the AquaRite S3 control system and salt cell plumbing.
Your plumbing layout can accept the salt cell in the correct orientation and location.
Your pool owner or service professional will maintain proper salt level, pH, alkalinity, calcium hardness, stabilizer, and saturation index.
Your heater, pump, automation, and other equipment are compatible with salt pool operation.
Any natural stone, soft stone, coping, decking, ladders, handrails, rails, light niches, and metal components are suitable for use around saltwater pools and are properly maintained.

Salt systems can be used successfully on many pool surfaces, but poor water balance or improper installation can contribute to scaling, staining, corrosion, surface damage, or equipment issues. Always follow Hayward installation instructions and water chemistry guidelines.

Confirm Before Ordering

Before purchasing, please verify:

Your pool is an in-ground pool.
Your pool volume is 40,000 gallons or less.
You want a salt chlorination system with built-in equipment control capabilities.
Your plumbing layout can support installation of the salt cell.
Your electrical setup is compatible with the system requirements.
Your pool surface and surrounding materials are suitable for salt chlorination.
Your pool has proper bonding and grounding.
You understand pool salt and chemistry balancing chemicals are sold separately.
Installation will be completed by a qualified pool professional or licensed electrician.

Key Features

Genuine Hayward AquaRite S3 salt system
Model AQRS340
Designed for in-ground pools up to 40,000 gallons
Automatically generates chlorine from salt
LCD color display for easy system control and monitoring
Built-in control capabilities for compatible pool equipment
Can control compatible heater and variable-speed pump functions
Broad operating salt range of 800–8000 ppm
Upgrade path to Omni controls with optional upgrade kit
Designed to simplify chlorine management
Professional installation recommended

Benefits

The Hayward AquaRite S3 AQRS340 helps pool owners maintain cleaner, more comfortable water by generating chlorine automatically from dissolved salt. This can reduce the need to manually handle traditional chlorine products and help provide more consistent sanitation when properly maintained.

The built-in color display makes it easier to monitor system status and adjust chlorine output. For compatible equipment pads, AquaRite S3 also offers control features that can help simplify pump and heater operation.

For in-ground pool owners looking for a modern salt chlorination system with added control capabilities, the AQRS340 is a strong upgrade option.

Pool Surface & Material Notes

Salt chlorination works best when water chemistry is properly maintained. The pool’s surface, finish, decking, stone, metal fixtures, and equipment must be suitable for saltwater use and properly cared for.

For plaster, pebble, quartz, and tile pools, maintain balanced water chemistry to help reduce scaling, etching, staining, or surface wear.

For fiberglass pools, follow the pool shell manufacturer’s water chemistry recommendations and confirm salt compatibility.

For vinyl liner pools, maintain proper salt and water chemistry levels and confirm that all metal components, ladders, rails, and fittings are suitable for saltwater conditions.

For pools with natural stone, soft stone coping, water features, or decorative materials, confirm salt compatibility before converting to salt chlorination. Some materials may require sealing, added maintenance, or may not be recommended for saltwater exposure.

Recommended Use

Use the Hayward AquaRite S3 AQRS340 for in-ground pools up to 40,000 gallons where the owner wants automated salt chlorination and built-in control features for compatible pool equipment.

This model is especially useful for homeowners upgrading from manual chlorine dosing to a salt system, or for new pool builds where salt chlorination is part of the equipment plan.

For above-ground pools, oversized pools, pools with incompatible materials, or systems requiring different automation features, a different model may be needed.

Installation Notes

This system should be installed by a qualified pool professional or licensed electrician. Salt system installation may involve plumbing, electrical wiring, bonding, grounding, flow detection, water chemistry balancing, and system programming.

Professional installation is recommended to ensure:

Correct salt cell placement
Proper water flow through the cell
Correct electrical wiring
Proper bonding and grounding
Safe control panel mounting
Correct system configuration
Compatibility with existing pump, heater, and equipment controls
Proper startup and water chemistry balancing

Improper installation or poor water chemistry can cause system errors, reduced chlorine production, scaling, corrosion, surface damage, or equipment problems.

Important Salt Pool Note

Salt systems do not eliminate pool maintenance. The pool still requires regular water testing, brushing, filtration, pH control, stabilizer management, calcium hardness monitoring, and periodic salt cell inspection/cleaning.

Maintaining proper water chemistry is especially important for protecting pool surfaces, heaters, metal fixtures, stonework, and equipment.

Technical Specifications

Customer-Facing Q&A

Q: What size pool is the Hayward AQRS340 designed for?
A: This AquaRite S3 model is designed for in-ground pools up to 40,000 gallons.

Q: Is this system for in-ground or above-ground pools?
A: This system is intended for in-ground pools.

Q: Does this system include a salt cell?
A: Yes. This 40,000-gallon AquaRite S3 system package includes the salt cell for compatible installations.

Q: Does this include pool salt?
A: No. Pool salt is sold separately.

Q: What pool surfaces can use this salt system?
A: Salt systems can be used on many properly maintained in-ground pool surfaces, including plaster, pebble, quartz, tile, fiberglass, and vinyl liner pools. Water chemistry, bonding, and material compatibility must be maintained.

Q: Is this safe for fiberglass pools?
A: It may be used on compatible fiberglass pools when the pool shell manufacturer allows salt chlorination and water chemistry is maintained properly.

Q: Is this safe for vinyl liner pools?
A: It may be used on compatible vinyl liner pools when salt level and water balance are maintained and all metal components are suitable for saltwater conditions.

Q: Can salt water damage stone or metal around the pool?
A: Salt exposure can affect certain natural stone, soft stone, metal fixtures, ladders, rails, and surrounding materials if they are not compatible or maintained properly. Confirm material compatibility before converting to salt chlorination.

Q: Does this system control pool equipment?
A: Yes. AquaRite S3 offers built-in control capabilities for compatible equipment such as heaters and variable-speed pumps. Some controls may require additional accessories.

Q: Can it control a single-speed pump?
A: Single-speed pump control may require an optional smart relay, sold separately.

Q: What salt level does this system operate in?
A: The AquaRite S3 operates across a broad salt range of 800–8000 ppm.

Q: Does a salt system mean I no longer need to maintain the pool?
A: No. Salt systems still require regular water testing, pH control, filtration, brushing, stabilizer management, calcium hardness monitoring, and salt cell maintenance.

Q: Should this be professionally installed?
A: Yes. Professional installation is recommended because the system requires plumbing, electrical wiring, bonding, grounding, flow verification, and proper startup.