Effortless Cleaning. Superior Convenience
The Polaris Vac-Sweep 3900 Sport is the ultimate pressure-side cleaner for in-ground pools, delivering unmatched vacuum power, rugged performance, and sleek design. Powered by a dedicated booster pump (sold separately), it scrubs, sweeps, and vacuums your entire pool in under 3 hours.
Equipped with TailSweep PRO for 50% more sweeping flow, an All-Wheel PosiDrive system with 50% more torque, and PosiTrax tyres specifically designed for superior grip on fibreglass and tiled pool surfaces, it climbs walls with ease and covers every corner.
The large 5L dual-chamber SuperBag captures more debris between cleanouts, and auto-reverse technology helps prevent hang-ups for uninterrupted cleaning cycles.
Why Choose the Polaris Vac-Sweep 3900 Sport?
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Reduce Filter Maintenance
Captures debris before it reaches your pump and filter—reducing cleaning by up to 80% and extending the life of your pool equipment.
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Clean, Healthy Water
Booster pump operation keeps your skimmer free to remove surface contaminants. Meanwhile, TailSweep PRO scrubs tight corners, steps, and hard-to-reach areas for a healthier, clearer pool.
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Enhanced Water Circulation
Returns clean, filtered water to all depths and surfaces—improving clarity and evenly distributing heat for more efficient heating.
Benefits:
- Unmatched Suction. Powerful Vacuum
Three high-performance Venturi jets and a 60mm (2-1/2") vacuum inlet deliver the most suction of any Polaris 3-jet cleaner. It captures large debris with ease and circulates 150 litres (40 GPM) of water per minute for extra filtration.
- All-Wheel PosiDrive System. Legendary Performance
Built with a stainless steel drive chain, the PosiDrive system delivers 50% more torque for faster cleaning and fewer hang-ups—even on challenging surfaces.
- Maximum Coverage. Extreme Sweeping
TailSweep PRO boosts flow by 50% to aggressively clean steps, corners, and tight spaces—while eliminating spray outside the pool.
- Hassle-Free Operation. Incomparable Convenience
The oversized dual-chamber SuperBag with a zippered design holds up to 5 litres of debris—40% more capacity than standard bags—reducing cleanout frequency and simplifying maintenance.
Key Features:
- Three Venturi Jets: High-powered suction for debris removal and increased circulation.
- TailSweep PRO: 50% more sweeping flow, no more wet windows or walkways.
- All-Wheel PosiDrive System: Stainless steel drive chain offers 50% more torque for faster, smoother cleaning.
- PosiTrax Tyres: Optimised for fibreglass and tile pools—delivers superior traction and confident wall climbing.
- Dual-Chamber SuperBag (5L): Collects more debris with less emptying.
- Auto-Reverse Technology: Frees the cleaner if it gets stuck.
- Large 65mm Vacuum Inlet: Easily picks up leaves, pebbles, and other large debris.
- Booster Pump Operation: Supplements pool filtration with 150 LPM (40 GPM) circulation (pump sold separately).
- Sleek, Reinforced Design: Combines modern styling with rugged durability.
In The Box:
- 1. SuperBag (Double) All-Purpose Zippered Bag
- 2. Cleaner Body with PosiTrax Tire
- 3. Sweep Hose
- 4. Tail Sweep Pro (with Sweephose Scrubber)
- 5. Feed Hose
- 6. Hose Floats
- 7. Back-up Valve
- 8. Feed Hose Connector
- 9. In-Line Filter with Filter Screen
- 10. Quick Disconnect with Universal Wall Fitting
- 11. UWF Restrictor Disks, Red and Blue
Technical Specifications:
| Venturi Jets |
3 Jets |
| Vacuum Inlet |
60mm (2-1/2") Large Intake |
| Drive Mechanism |
All-Wheel PosiDrive with Stainless Steel Chain |
| Tyres |
Wide PosiTrax |
| Debris Collection |
Dual-Chamber SuperBag with Zipper |
| Debris Capacity |
5 Litres |
| Auto Backup |
Yes (Auto-Reverse Technology) |
| Requires Booster Pump |
Yes (Sold Separately) |
| Pool Type / Surface |
In-Ground Pools / Fibreglass/Tile/Vinyl |
| Warranty |
2 Years |
Fast, Powerful, Reliable
The Polaris 3900 Sport is your go-to pressure cleaner for premium, high-capacity cleaning—delivering faster cycles, better coverage, and exceptional debris removal in every corner of the pool.
Frequently Asked Questions:
Cleaner Gets Stuck on Steps or Obstacles (Over 3 Minutes)
- Check the wheel speed — target is 30–36 RPM.
- Verify the back-up valve is cycling every ~3 minutes. Lift it from the water and check that the jet pulses on and off.
- Adjust the thrust jet direction (factory setting is 7 or 11 o’clock).
- Remove unnecessary pool hardware or install a Ladder Guard Kit (Part #W7230412).
Cleaner Is Sluggish or Not Moving
- Clean the in-line filter screen (inside the clear chamber near the wall fitting).
- Empty the SuperBag filter bag — especially if it’s full of fine debris like sand.
- Clean the skimmer basket, pump basket, and pool filter to ensure full water flow.
- Inspect hoses and swivels for leaks that could reduce water pressure.
- Check the wheel RPM — increase flow if below 30 RPM (see below).
Cleaner Races or Misses the Pool Bottom
- Check the wheel RPM — reduce flow if over 36 RPM.
- Verify the back-up valve is cycling properly.
Cleaner Doesn’t Back Up
- Lift the back-up valve from the pool to verify it's cycling on and off.
- Check the wheel RPM — aim for 30–36 RPM.
- Empty or replace the filter bag if full.
- Ensure the feed hose is floating — add or adjust hose floats as needed.
Cleaner Only Turns in One Direction
- Adjust the thrust jet for more balanced navigation.
- Make sure the feed hose is floating properly — check float placement and spacing.
Hose Becomes Tangled
- Check hose length and trim if it’s too long for the pool.
- Ensure hose swivels and connections rotate freely.
- Verify hose floats are spaced 30–90 cm apart, starting with one next to the feed hose connector.
- With the cleaner submerged, confirm all wheels are turning together.
Front End of Cleaner Lifts Constantly
- Check wheel RPM — if above 36, reduce flow.
- Angle the thrust jet downward to improve balance.
- Ensure the back-up valve is cycling.
- Check for water inside the cleaner float — it should be dry.
Sweep Hose Gets Sucked into Cleaner
- Check that the sweep hose scrubber is intact — replace if worn or missing.
- Adjust sweep hose pressure to a gentle sweeping motion.
- Reduce flow if RPM is above 36.
- Add a sweep hose weight (Part #W7230203) if necessary.
Cleaner Doesn't Cover Entire Pool
- Ensure the feed hose reaches within 15cm of the farthest pool point. Add or trim hose sections if needed.
- Adjust thrust jet angle to improve directional coverage.
Cleaner Runs in Circles on Its Side
- Check for water inside the cleaner float — if present, drain and reseal.
- Empty the filter bag — a heavy load can unbalance the cleaner.
- Ensure hose floats are spaced evenly.
- Verify the RPM is within range — reduce if above 36.
How Do I Adjust the Wheel RPM?
If below 30 RPM:
- Clean the in-line filter screen.
- Clean pump and skimmer baskets, and the pool filter.
- Check for leaks in hose and connections.
- Remove the restrictor disk from the wall fitting (UWF).
If above 36 RPM:
- Replace blue disk with a red restrictor disk in the UWF.
- If needed, open the pressure relief valve to lower flow.
Note: Only adjust the pressure relief valve if a restrictor disk is installed.
How Should I Store the Cleaner?
Do not store the cleaner in direct sunlight. For winter, remove from the pool, drain completely, clean and dry the unit, and store it indoors or in a shaded, dry area. Freeze damage is not covered under warranty.
How Do I Clean the In-Line Filter?
Pull the screen out of the in-line filter housing, rinse with water, and press it firmly back into place. Clean it regularly to maintain optimal performance.
How Often Should I Empty the Debris Bag?
Empty the SuperBag when it's half full—especially if you're collecting sand or fine debris. Dry bags are easier to empty. Many users rotate between two bags for convenience.
Are Replacement Parts Available?
Yes. All parts for the Polaris 3900 Sport — including tyres, scrubbers, filter bags, hoses, and back-up valves — are available. Browse Polaris 3900 Sport Spare Parts.
Note!
Differences between Product Illustrations and Actual Products: The product illustrations (including product pictures, images and display contents) displayed on the website are for reference and illustrative purpose only. The actual products received by each customer may vary and differ slightly with the product illustrations in the aspects including but not limited to appearance, color, logo, dimension and size due to production batches, improvements, legal and regulatory requirements, country or region or other reasons. Please refer to the acutual products received. The final interpretation of product specifications and appearance belongs to Polaris.
