Jandy Backwash Valve Manual

The Jandy Backwash Valve is a critical component for pool filtration systems, designed to facilitate efficient backwashing of sand filters and DE filters. This manual covers the NeverLube multiport valve series with features including six positions (FILTER, BACKWASH, RINSE, WASTE, RECIRCULATE, CLOSED), durable construction, clear lid for visual inspection, and easy maintenance. Below are essential sections for installation, operation, maintenance, and troubleshooting.

1. Features at a Glance 2. Installation 3. Operation Positions 4. Specifications 5. Controls and Settings 6. Connecting to Filter System 7. Backwashing Procedure 8. Maintenance & Lubrication 9. Care & Cleaning 10. Regulatory Information 11. Troubleshooting

Features at a Glance

Key components: Multiport valve body, handle assembly, clear viewing lid, O-rings, mounting flange, and pressure gauge port.

Feature	Description
6-Position Handle	FILTER, BACKWASH, RINSE, WASTE, RECIRCULATE, CLOSED
Clear Viewing Lid	Allows visual inspection of water flow and debris
Pressure Gauge Port	For monitoring filter pressure
NeverLube Design	Requires no regular lubrication of internal parts
Durable Construction	UV-resistant ABS plastic with reinforced components
Easy Installation	Standard 1.5" or 2" plumbing connections
Internal Diverter	Directs water flow according to handle position
O-Ring Seals	Provides watertight connections between components
Locking Mechanism	Secures handle in selected position
Winterization Port	For easy winter closing procedures

Installation

Unpack and inspect all components. Ensure proper orientation and secure mounting.

Shut off pump: Turn off pool pump and close all valves.
Mount valve: Position valve on filter tank, aligning bolt holes.
Connect plumbing: Use appropriate PVC fittings for inlet and outlet connections.
Secure mounting: Tighten bolts evenly to prevent leaks.
Connect waste line: Attach backwash hose to waste port.
Install pressure gauge: Thread into pressure gauge port.

WARNING! Ensure pump is off during installation. Use Teflon tape on threaded connections.

Operation Positions

Rotate handle to desired position for different filtration functions.

FILTER: Normal filtration through filter media.
BACKWASH: Reverses flow to clean filter media.
RINSE: Cleans plumbing after backwashing.
WASTE: Bypasses filter for vacuuming to waste.
RECIRCULATE: Bypasses filter for chemical circulation.
CLOSED: Shuts off flow to filter (pump off only).

CAUTION! Always turn pump off before changing valve positions.

Specifications

Valve Type: Multiport backwash valve
Connection Size: 1.5" or 2" NPT threaded
Maximum Pressure: 50 PSI operating pressure
Maximum Flow Rate: 120 GPM
Temperature Range: 40°F to 120°F operating temperature
Body Material: UV-resistant ABS plastic
Handle Material: Durable thermoplastic
Seals: Buna-N O-rings
Weight: 4.5 lbs (complete assembly)
Warranty: 1-year limited warranty

Controls and Settings

Handle positions control water flow direction through the filtration system.

Position Indicators: Clear markings for each function with positive locking detents.

Pressure Monitoring: Install gauge in pressure port to monitor filter condition. Normal operation: 10-25 PSI. Backwash when pressure rises 8-10 PSI above clean pressure.

Connecting to Filter System

Standard installation on sand filters and DE filters with compatible mounting flanges.

Verify compatibility with filter model.
Apply pipe sealant to threaded connections.
Hand-tighten, then use wrench for final quarter turn.
Ensure waste line is properly secured and directed to drainage area.

Tip: Pressure test system before final operation.

Backwashing Procedure

Regular backwashing maintains filter efficiency and extends media life.

Turn pump off before changing valve position.
Rotate handle to BACKWASH position.
Turn pump on and run for 2-3 minutes or until sight glass runs clear.
Turn pump off and rotate handle to RINSE position.
Turn pump on and run for 30-45 seconds.
Turn pump off and return handle to FILTER position.
Turn pump on for normal operation.

WARNING! Never operate pump in BACKWASH or RINSE for extended periods.

Maintenance & Lubrication

NeverLube design requires minimal maintenance. Periodic inspection recommended.

Inspect O-rings every 6 months
Clean viewing lid as needed
Check handle operation monthly
Verify pressure gauge accuracy

Care & Cleaning

Use mild soap and water for exterior cleaning. Avoid harsh chemicals.

CAUTION! Do not use petroleum-based lubricants on O-rings. Use only silicone-based pool lubricants if needed.

Regulatory Information

NSF/ANSI 50 certified for pool equipment. Manufactured to meet industry standards for safety and performance. Copyright © 2025 Jandy Products. For technical support, visit www.jandy.com or contact 1-800-227-1442.

Troubleshooting

Symptom	Possible Cause	Corrective Action
Valve leaking	Worn O-rings or improper installation	Replace O-rings; check installation torque
Handle hard to turn	Debris in valve or misalignment	Clean internal components; realign valve
No flow in backwash	Clogged internals or wrong position	Disassemble and clean; verify handle position
Water bypassing filter	Worn spider gasket	Replace spider gasket assembly
Pressure gauge not working	Clogged or damaged gauge	Clean or replace pressure gauge

Service: 1-800-227-1442; www.jandy.com