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Polaris G52 – Back-Up Valve Kit
Product Overview
The Polaris G52 Back-Up Valve Kit is an OEM replacement designed for Polaris pressure-side pool cleaners. It automatically reverses the water flow every few minutes, helping your cleaner back out of tight corners and ensuring complete pool coverage.
Key Features
- Compatible with Polaris 180, 280, 380, 480 Pro, and 3900 Sport models.
- Built-in timing mechanism activates approximately every 2.5 to 3 minutes for about 30 seconds.
- Durable white plastic construction for long-lasting performance.
- Restores automatic back-up function to keep cleaner from getting stuck.
- Easy drop-in replacement—no tools required for installation.
Technical Specifications
- Part Number: G52
- Function: Back-up valve assembly for pressure pool cleaner hose
- Cycle Interval: ~3 minutes
- Material: High-impact ABS plastic
- Color: White
Applications & Compatibility
The G52 Back-Up Valve Kit is designed for Polaris pressure-side pool cleaners including models 180, 280, 380, 480 Pro, and 3900 Sport. It replaces worn or non-functioning valves to restore proper cleaner cycling and pool coverage.
Installation Instructions
- Turn off the pool pump and release pressure in the cleaner hose line.
- Locate the existing back-up valve, usually positioned 5–6 feet from the cleaner head.
- Disconnect the old valve and replace it with the new G52 valve, ensuring the arrow on the body points in the direction of water flow.
- Reattach hose connections and secure fittings tightly.
- Restart the pool pump and observe the cleaner to ensure proper back-up cycling occurs every few minutes.
Troubleshooting
- Cleaner stuck or not moving properly: Verify correct valve orientation and that the timer mechanism is functioning.
- Cleaner backs up too often or not at all: Check for debris in the valve and confirm it is the correct G52 model for your cleaner.
- Leaks at hose connection: Inspect O-rings, tighten fittings, and ensure the valve is seated properly.
Maintenance Tip
Inspect the back-up valve each season for wear, cracks, or reduced timing performance. Replace the valve if water leaks continuously from the ports or if the cleaner no longer reverses as expected. Regular maintenance of the G52 valve ensures efficient cleaner operation and full pool coverage.

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