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Polaris 3900 Sport Swimming Pool Cleaner Review

The Polaris 3900 Sport Pool Cleaner is one of the most technologically advanced pressure-side swimming pool cleaners available. The 3900 is designed for all in-ground swimming pools of any shape or size. Made for use with a separate booster pump, the three-jet propulsion system is incorporated with the PosiDrive system which produces 50% more all-wheel-drive torque then normal pressure-side pool cleaners.
Features like the WideTrax tires are just one of many reasons why this cleaner is one of the best on the market. The 3900 Sport Venturi vacuum system creates 40 GPM of additional pool filtration through the filter bag itself. Not to mention the larger 5-liter bag size which requires you to empty the bag less. Plus, the Polaris 3900 has durable plastics and stainless steel hardware body to finish off this top-of-the-line in-ground swimming pool cleaner.
  • Cleans the bottom and walls of any size/shape in-ground swimming pool
  • For use with a separate booster pump systems
  • 3900 Sport Venturi vacuum filters 40GPM through the filter bag
  • WideTrax tires that add to the superior torque transfer resulting in aggressive wall climbing.
  • PosiDrive all-wheel drive system with 50% more torque
  • 5-liter capacity filter bag with easy twist-release connector
  • Stainless steel drive train and hardware
  • 10-year frame warranty / 1-year limited warranty on the rest of the parts
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  • frank

    My polaris sport 3900 has been nothing but a headache ever since we got it. My 280 was worn after 8-9 years of wonderful use.) I thought i would “upgrade” and get the new Sport 3900. WHAT A MISTAKE! This thing is very slow, and cant even climb the wall. I did the wheel check to insure I was getting the proper revolution . We get 32 rpm. The manual says you need between 30-36.) This thing is so slow and can barely move. I am thinking about saying to heck with Polaris, thier dealers Leslies) because the customer service is so terrible. I am going to buy Aquabot, which appears to have WONDERFUL reviews. The dealer and Zodiac) Polaris wont even call you back and the wait time on the phone is like 30 minutes. Thats pretty bad customer service don’t u think?

    • PoolSupplyWorld

      Hi Frank, thanks for leaving your feedback. We’re certainly sorry to hear you’re not 100% satisfied with your Polaris 3900. While Aquabot has a fantastic line of cleaners, we have some troubleshooting tips for you on the Polaris. First, have you tried increasing the water pressure? Although you are currently in range, it could be that the cleaner needs more power for the type of pool that you have.

      The hose length is also very important. The hose always needs to be properly measured for the pool. There is a possibility that you either have too much or not enough hose. The Polaris cleaner has two types of hoses: a leader hose and a feed hose. The leader hose is the one attached to the cleaner first. This one must be as long as the deepest part of the pool (if the pool is six feet deep, the leader hose must also be 6 feet long.) You first attach the feed hose and stretch it out to the furthest point of the pool. If it goes beyond, cut the feed hose. It it is too short, you will need to add hose.

      If these suggestions don’t seem to help, we would be more than happy to answer any questions you may have about any of the Aquabot models.

  • kevin carey

    my 3900 single side wheel does not move. Should the single wheel have a gear inside to match the gear holding it? It feels smooth when I remove the gear holding it on.

    • PoolSupplyWorld

      Hi Kevin, thank you for the question regarding your Polaris 3900 Pressure-Side Pool Cleaner. The side wheels of the Polaris 3900 do have gears, however, if your wheel has stopped working, you will need to replace the entire wheel with the Zodiac Pool Care Inc Single Side Wheel, 3900S. Please let us know if we can be of any further assistance.

  • Tina

    I brought my 3900 last summer and I realized I made a huge mistake. I recently had to replace the mesh bag. Any little thing tears it. As of yesterday, the wheels are not turning, I follow the troubleshooting on it and it appears to be something internal. Think twice about buying this.

    • PoolSupplyWorld

      Hey Tina, we’re very sorry to hear you’ve not been satisfied with your 3900. The challenge may be gears, belts, jets, etc. Have you contacted Zodiac directly to help you troubleshoot? Perhaps a local pool store would be able to take a look at the cleaner and diagnose a problem? We are more than happy to help in any way we can, including a recommendation for a cleaner that you might like better. Please give us a call or send us an email if we can be of any assistance.

  • Chet Klyn

    This is one great cleaner. I only have to run it half the time that I had run the old Legend cleaner. It picked up a 3″ chlorine tab that fell out of one of the floats. It climbs the walls and cleans the tiles. I would recommend this cleaner and Pool Supply World to anyone. Chet Klyn Texas

    • PoolSupplyWorld

      I’m glad to hear you like it, most people that get to actually see the 3900 in action agree with you! Thanks for the comment and feel free to comment or ask questions on any of our other posts!

  • ken

    I have a problem with the back up valve. I have tried two different ones and they are not strong enough to move it. Also is that clear blue bubble on the back suppose to have water in it. Ive had nothing but problems with this new series.

  • Sallia

    We are having problems that the cleaner will not leave the deep end and it’s not picking up sand and small debris on the bottom of the pool. We followed the set-up instructions. It also comes loose from the hose, so we have to retrieve it. We had a Polaris before, so this one is disappointing.

    • PoolSupplyWorld

      Hey Sallia, have you testing the pressure running to the pool cleaner? Sounds like that may be the source of your lack of cleaning power. If that still does not solve the problem you may need to contact the manufacturer and see if they can walk you through some trouble shooting steps.

  • Kerry

    We bought a 3900 about a year ago and it has never worked properly. It’s been in the shop more than in the pool. It gets stuck on the drain at the bottom of the pool everytime it goes by it. It also will go up the side wall of the pool and just flip over onto its side for no reason. We, too, have experienced the problem of it refusing to clean the shallow end for whatever reason. I definitely wouldn’t recommend it–we are considering trading it for the Polaris 9300. Polaris has agreed to just let us pay the difference in price if we upgrade.

  • eric musekamp

    my 3900 single wheel has stopped moving any fixes for this new polaris?

  • dan Newton

    I have had my 3900 over a year, It has performed well until recently. Just had a warrenty repair no charge) to replace the single wheel where it had stripped out around the shaft. Problem now is that it turns over on its side. I have verified RPM in range Any possible solutions?

  • jack pluis

    i have your 3900 model it want to ride in the up all the time tail down and fall over side ways can you help me out. jack

    • Jack pluis

      The problem I found was the float on the unit was full of water replaced it and ok now

    • PoolSupplyWorld

      Hi again Jack, we’re glad you were able to find a solution for the issue with your 3900. Please let us know if we can be of any further assistance.

  • Robert Marx

    I upgraded to this piece of junk about a year ago and have had nothing but trouble. The design is poor at best. After stripping out the drive wheel, they came up with a fix which fixed that problem. A continual problem has been the chain drive which won’t stay on the drive gear. The spring tensioner is not strong enough to keep the chain on the sprocket. I and the dealer have tried fixes to no avail. Polaris refuses to acknowledge a design flaw and is not standing behind their product. Avoid this device. Get the cheapest oldest design, 2800. It worked for years without a hitch.

    • PoolSupplyWorld

      Hi Robert, we’re sorry to hear of the trouble you have had with your Polaris 3900. If you need troubleshooting advice or are in the market for a new cleaner, please let us know how we can help. We’re always happy to provide assistance.

  • David

    My 3900 won’t get up to the shallow end. I have the blue disk in and when I take that out it races to fast. Also, the sweeper hose won’t move around no matter how I adjust it. Any Suggestions?

    • PoolSupplyWorld

      Hi David, please verify that you have enough feed hose length and that it reaches within 6” of the furthest point in the pool. You can also adjust the thrust jet to improve cleaner coverage. The sweep hose can also be adjusted by moving the sweep hose jet knob clockwise to increase, or counter-clockwise to decrease, movement. If you’re still experiencing issues after these adjustments, we recommend contacting the manufacturer for additional troubleshooting steps. Please let us know if we can be of further assistance.

  • Noreen Emmerson

    Polaris 3900 has been nothing short of a pain! All sorts have gone wrong which we somehow managed to correct. Now though, ALL 3 wheels have stopped turning and we don’t know what to do! Can you advise? Thanks

  • PoolSupplyWorld

    Hi Jack, there are a few reasons why your Polaris 3900 may be stuck on its side, and you’ll first want to ensure that its debris bag isn’t overly full. A heavy debris bag can force the Polaris 3900 onto its side. For future reference, it’s always best to empty your debris bag at its halfway mark. Also, please verify that the Polaris 9300′s hose floats are spaced properly to ensure that it is not being weighed down on one side.

    Finally, you’ll want to ensure that that your cleaner is receiving the correct amount of water pressure. You can check this by counting the wheel rotations per minute (RPM) of your cleaner: if your cleaner’s RPM is more than 36, this can cause the cleaner to lose control and fall over. Please make the necessary adjustments to your water flow for better performance. We hope this offers a solution, and please feel free to contact us if you have any further questions.