Fibropool Swimming Pool Inline Diverter Valve 1 1/2 in - 2 Way

In this review of the Fibropool 1 1/2 in Posi-Close inline diverter valve, the bottom line is simple: it is a practical, serviceable valve for homeowners and installers who need a durable, lubeless 2-way solution for pool and spa plumbing. The reviewer found the valve best suited to manifold builds and direct inline shutoff roles where temperature and chemical resistance matter. Its PTFE seats and CPVC body make it a straightforward swap for heater, chemical dispenser or salt generator lines, though buyers should confirm they receive all parts on delivery.

Key Features

• Inline 2-way design: The valve functions as a compact diverter ideal for manifold making or simple shut off in a plumbing run.
• 1 1/2 in slip ports: Standard 1 1/2 in pipe glues directly into the ports for a secure, permanent connection without adaptors.
• CPVC construction: The body stands up to pool temperatures and offers improved impact resistance compared with some standard plastics.
• PTFE lubeless seats: The internal seats do not require grease or lube, reducing maintenance and contamination risk near heaters or chemical equipment.
• Serviceable design: The valve can be serviced if needed, which helps extend its useful life in a maintenance program.
• Salt water resistant: Rated for salt pool use so it can be used with salt generators and other chlorination systems.

Who It's For

This valve is aimed at pool owners, technicians and DIYers who need a compact, reliable inline diverter for pump, filter, heater or chemical lines. It particularly suits projects where a lubeless PTFE seat is preferred to avoid grease contamination near heaters and salt generators.

It is less suitable for applications that require quick-disconnect fittings or where a handle or additional hardware is expected out of the box; several buyers reported missing handles on delivery, so those needing a complete ready-to-operate valve right away should confirm package contents or source a handle locally.

Pros & Cons

Pros

• Durable CPVC body provides good temperature and impact resistance for pool plumbing.
• PTFE lubeless seats eliminate the need for grease and reduce maintenance demands.
• Designed for standard 1 1/2 in slip pipe, making installation straightforward for common plumbing runs.
• Salt water resistant so it works with salt generators and chlorination systems.

Cons

• Some customers have reported missing parts on arrival, most commonly handles, so inspect the package on receipt.
• As an inline slip valve, it requires solvent welding and is not a quick-disconnect solution.

Specifications

Valve type	Inline 2-way diverter
Port size	1 1/2 in slip ports
Material	CPVC
Seat material	PTFE (lubeless)
Typical uses	Pump, filter, heater, chemical dispenser, salt generator
Salt compatibility	Compatible with salt water pools

Our Verdict

The Fibropool 1 1/2 in Posi-Close inline diverter is a solid, no-nonsense choice for pool plumbing where a lubeless PTFE seat and CPVC durability are priorities. It delivers good value for installers and homeowners building manifolds or tying in heaters and salt generators, provided you check the package for all parts before installation.

Frequently Asked Questions

Is this valve suitable for salt water pools?
Yes. The valve is compatible with salt water pool systems and is suitable for use with salt generators.

Can I glue standard 1 1/2 in pipe directly into this valve?
Yes. The valve has 1 1/2 in slip ports designed for solvent welding with 1 1/2 in pipe.

Does the valve need grease or lubricant?
No. It uses PTFE lubeless seats so no grease or lube is required for service.