Product Overview

The Hayward 3-Port Diverter Valve 3" | PSV3S3 is a heavy-duty pool and spa plumbing valve designed to control and redirect water flow in compatible circulation systems. This valve is commonly used in equipment pad plumbing where water needs to be routed between multiple lines, such as pool/spa suction, pool/spa return, water features, bypass lines, heaters, solar systems, or other compatible plumbing applications.

With a 3-port design and 3" plumbing size, the PSV3S3 is intended for larger plumbing systems that require strong flow capacity and reliable directional control. It can be used in new installations, equipment pad upgrades, or compatible valve replacements when the existing plumbing layout matches the valve size and configuration.

Because plumbing valves must match the system’s pipe size, flow requirements, equipment layout, and automation needs, compatibility should be confirmed before ordering.

Ideal For

Pool and spa equipment pad plumbing
Large-flow pool circulation systems
3" PVC plumbing applications
Pool/spa suction or return routing
Water feature control
Heater or equipment bypass plumbing
Solar heating plumbing layouts
New pool construction
Equipment pad remodels and upgrades
Replacing compatible 3-port diverter valves
Pool professionals installing Hayward plumbing components

What’s Included

Hayward 3-port diverter valve
3" valve body
Internal diverter assembly
Valve lid and handle
Manufacturer-supplied packaging and documentation

What’s Not Included

Installation labor
PVC pipe
PVC fittings
PVC primer or cement
Valve actuator
Automation system
Union fittings unless included by manufacturer packaging
Replacement O-rings or seals beyond factory-installed components
Additional plumbing accessories
Professional startup or system balancing service

Compatibility Guidance

The Hayward PSV3S3 is designed for compatible pool and spa plumbing systems that require a 3-port diverter valve with 3" plumbing connections.

Before ordering, confirm the following:

You need Hayward part number PSV3S3.
Your plumbing layout requires a 3-port diverter valve.
Your system uses compatible 3" PVC plumbing.
Your equipment pad has enough space for the valve body and handle rotation.
Your flow requirements are appropriate for a 3" valve.
Your pipe orientation matches the valve’s port configuration.
Your application requires directional flow control, not a simple shutoff valve.
Your automation setup, if used, is compatible with the valve and required actuator.
Your pool professional has confirmed installation fitment.

Do not order this valve by pipe size alone. Valve compatibility depends on port configuration, plumbing layout, flow direction, equipment placement, service clearance, and whether manual or automated operation is required.

Confirm Before Ordering

Before purchasing, please verify:

You need the Hayward PSV3S3 model.
You need a 3-port diverter valve.
Your system uses 3" plumbing.
Your equipment pad layout has enough room for installation and operation.
Your plumbing orientation matches the valve port layout.
You understand this is a diverter valve, not a check valve or standard shutoff valve.
A valve actuator is required separately if automated control is needed.
Professional installation will be completed if plumbing modification is required.

Key Features

Genuine Hayward pool and spa plumbing valve
Model PSV3S3
3-port diverter valve design
3" plumbing size
Designed for pool and spa circulation systems
Allows water flow to be redirected between plumbing lines
Suitable for suction, return, bypass, water feature, and equipment routing applications
Manual handle operation
Actuator-compatible when paired with the correct automation components
Durable valve body for equipment pad use
Serviceable design for future maintenance
Professional installation recommended

Benefits

The Hayward PSV3S3 3-Port Diverter Valve gives pool professionals a reliable way to control water flow in larger pool and spa plumbing systems. Its 3-port layout allows water to be redirected between different plumbing paths, helping manage pool/spa operation, water features, bypass lines, or equipment routing.

The 3" size makes this valve suitable for systems with larger plumbing and higher flow requirements. When installed correctly, it can help improve equipment pad organization, simplify water-flow control, and support more flexible system operation.

For automated pool systems, this valve may be paired with a compatible valve actuator, allowing the automation system to control flow direction when properly configured.

Diverter Valve Advantage

A diverter valve is used to direct water between different plumbing lines. Unlike a basic shutoff valve, a 3-port diverter valve can control how water is split or routed through multiple paths.

Common uses include routing water between pool and spa lines, sending flow to water features, bypassing equipment, or balancing return-side plumbing. Correct valve placement and orientation are important for proper system performance.

Recommended Use

Use the Hayward PSV3S3 when your pool or spa plumbing system requires a 3" 3-port diverter valve for flow control or equipment routing.

This valve is best suited for systems where a pool professional has confirmed the plumbing size, flow direction, port orientation, and required application.

For smaller plumbing systems, 2-port applications, check-valve applications, or automated setups requiring actuator control, confirm whether a different valve or additional accessories are needed.

Installation Notes

This valve should be installed by a qualified pool professional or experienced pool plumber. Installation may involve cutting plumbing, dry-fitting pipe, valve orientation, PVC primer and cement, curing time, leak testing, system startup, and flow balancing.

Professional installation is recommended to ensure:

Correct valve model and size selection
Proper port orientation
Correct pipe alignment
Proper PVC solvent welding
Adequate handle clearance
Leak-free installation
Correct water-flow direction
Proper system pressure operation
Compatibility with automation if an actuator is added
Safe startup and flow verification

Improper installation or incorrect valve selection may cause leaks, restricted flow, poor equipment performance, plumbing stress, or system operation issues.

Important Fitment Note

This item is a 3" 3-port diverter valve. It is not a universal replacement for every pool valve and should not be used as a substitute for a different pipe size, valve type, port configuration, or plumbing layout.

If your system uses 1.5", 2", 2.5", or a different valve style, a different replacement valve may be required.

Technical Specifications

Customer-Facing Q&A

Q: What is the Hayward PSV3S3 used for?
A: It is a 3" 3-port diverter valve used to control and redirect water flow in compatible pool and spa plumbing systems.

Q: What size plumbing is this valve for?
A: This valve is designed for 3" plumbing.

Q: How many ports does this valve have?
A: This is a 3-port diverter valve.

Q: Is this a shutoff valve or diverter valve?
A: This is a diverter valve. It is used to route or split water flow between plumbing lines.

Q: Can this be used for pool and spa plumbing?
A: Yes. It can be used in compatible pool and spa plumbing layouts when the 3" size and 3-port configuration match the system design.

Q: Can this control water features?
A: Yes, it may be used to route water to compatible water features when properly installed in the plumbing layout.

Q: Does this include a valve actuator?
A: No. A valve actuator is not included.

Q: Can this valve be automated?
A: It may be automated when paired with a compatible valve actuator and automation system. Confirm compatibility before ordering.

Q: Does this include PVC fittings or glue?
A: No. PVC pipe, fittings, primer, cement, and installation materials are not included.

Q: Will this replace any 3" pool valve?
A: No. Compatibility must be verified by valve type, port count, pipe size, plumbing orientation, and application.

Q: Can I install this myself?
A: Professional installation is recommended if plumbing changes are required. Incorrect installation can cause leaks, poor flow, or plumbing stress.

Q: What should I check before ordering?
A: Confirm that you need part number PSV3S3, that your system uses 3" plumbing, that your application requires a 3-port diverter valve, and that your pool professional has verified the plumbing layout.