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Thread: Polaris p380 Problems

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    Thumbs up Polaris p380 Problems

    Hello,
    I am a new pool owner and my pool has a Polaris p380. Anyways, it will not sit flat, and it turns on its side constantly. I have tried adjusting the jet on the back and the sweep hose screw(my sweep hose is also not sweeping, maybe that is related). I will take the hose and set it upright but as soon as it hits a wall it reverts to its side, or it climbs halfway and the bottom stays up as it goes across the pool. Also, the bag is empty and the float does not have any water in it. Thanks for your help!
    15000 Gallon IG Gunite Pool(White, redone late 2016), Single Speed Switchless (AO Smith Centurion motor) Pump, Polaris P380(Ugh), Pentair booster pump, Hayward Pro-Grid DE4820 filter, 1 skimmer, 1 MD, salty, soft, and absurdly expensive Texas public water.

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    bmoreswim's Avatar
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    Re: Polaris p380 Problems

    Hello! Welcome to TFP. I'm sorry I don't have a suggestion on what is wrong with your vacuum. You are not the first person to hear my spiel. My vote is to ditch the Polaris a get a robot. In order to run your vacuum, you have to run your pump AND your booster pump, using much more electricity than necessary to clean your pool. To run a robot you plug it in and throw it in (drop it in actually to be safe). Our Dolphin robot (see link in signature) cleans much better than our pressure side vacuum did, which was a similar style to yours. Ours mostly went in big circles, not getting to the shallow end and cleaned poorly. I didn't realize how poorly until I got a robot and the dust-like debris wasn't there anymore. Both captured leaves except that the our old vac only hit less than 1/2 the pool.
    18'x38' Rectangle (3'-8 1/2' deep w/ diving board) - 27K gal. w/ gray plaster
    Hayward equipment (cartridge filter, 2-speed pump, SWCG, automation) View Our Build
    Coverstar automatic pool cover | StoneMakers concrete retaining wall and decking | Merlin SmartMesh winter safety cover
    Spring 2013 Build | Dolphin Active 20 robot cleaner | Support TFP!

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    Mod Squad kimkats's Avatar
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    Re: Polaris p380 Problems

    How is the pressure in your filter? I wonder if it needs to be cleaned. Do you know when it was last cleaned?
    TFP Moderator 33x52 round AG 25,600 gals Sand Filter 1.5hp Pump - 2 Speed, SLAM, Pool School, Recommended Levels, Recommended Chemicals, Pool Math, Chlorine/CYA Chart, TF-100 Test Kit

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    Re: Polaris p380 Problems

    I just backwashed today, it is now 20 psi. Also, the booster pump works fine.
    15000 Gallon IG Gunite Pool(White, redone late 2016), Single Speed Switchless (AO Smith Centurion motor) Pump, Polaris P380(Ugh), Pentair booster pump, Hayward Pro-Grid DE4820 filter, 1 skimmer, 1 MD, salty, soft, and absurdly expensive Texas public water.

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    Re: Polaris p380 Problems

    When both pumps are off, does the cleaner set upright in the pool with the rear wheel just off of the floor? That's what it is supposed to do.
    Hard to say, but it sounds like the vacuum jets are clogged, or there is an issue with the internal plumbing. Possibly a backup valve issue. Should be a relatively quick easy fix for someone who is knowledgeable in the workings of the 380.
    I will respectfully disagree with the previous post, who blindly suggested that you ditch the 380 and drop close to a grand on a new cleaner. Those of us who actually work in the industry know that there is no single one size fits all "best" solution to every pool out there.
    Take it to a pool shop, or have a tech stop by. It can be as simple as an internal hose popped loose.

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    Mod Squad kimkats's Avatar
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    Re: Polaris p380 Problems

    So next up would be for you to pull out the owners manual and go over the cleaner with a fine tooth comb looking for what could be causing this. Is something loose? missing?

    How old is the cleaner? When did it last work right?

    Kim
    TFP Moderator 33x52 round AG 25,600 gals Sand Filter 1.5hp Pump - 2 Speed, SLAM, Pool School, Recommended Levels, Recommended Chemicals, Pool Math, Chlorine/CYA Chart, TF-100 Test Kit

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    Re:  Polaris p380 Problems

    Quote Originally Posted by Mayorb View Post
    When both pumps are off, does the cleaner set upright in the pool with the rear wheel just off of the floor? That's what it is supposed to do.
    Hard to say, but it sounds like the vacuum jets are clogged, or there is an issue with the internal plumbing. Possibly a backup valve issue. Should be a relatively quick easy fix for someone who is knowledgeable in the workings of the 380.
    I will respectfully disagree with the previous post, who blindly suggested that you ditch the 380 and drop close to a grand on a new cleaner. Those of us who actually work in the industry know that there is no single one size fits all "best" solution to every pool out there.
    Take it to a pool shop, or have a tech stop by. It can be as simple as an internal hose popped loose.
    Agreed that it is good for pool owners to know their options.
    18'x38' Rectangle (3'-8 1/2' deep w/ diving board) - 27K gal. w/ gray plaster
    Hayward equipment (cartridge filter, 2-speed pump, SWCG, automation) View Our Build
    Coverstar automatic pool cover | StoneMakers concrete retaining wall and decking | Merlin SmartMesh winter safety cover
    Spring 2013 Build | Dolphin Active 20 robot cleaner | Support TFP!

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    Re: Polaris p380 Problems

    Yes, bmoreswim's post was very helpful to my case. I have taken it apart and checked everything. I don't know exactly how old it is as it was purchased by the previous homeowner. When it is off it does not usually sit upright, and the backup valve works fine. It last worked good in November, so it may be a loose hose or something.
    15000 Gallon IG Gunite Pool(White, redone late 2016), Single Speed Switchless (AO Smith Centurion motor) Pump, Polaris P380(Ugh), Pentair booster pump, Hayward Pro-Grid DE4820 filter, 1 skimmer, 1 MD, salty, soft, and absurdly expensive Texas public water.

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    Re: Polaris p380 Problems

    Would adjusting the hose that supplies water at the top of the polaris help?(I moved it back and I think it was bent over time to where it was)
    15000 Gallon IG Gunite Pool(White, redone late 2016), Single Speed Switchless (AO Smith Centurion motor) Pump, Polaris P380(Ugh), Pentair booster pump, Hayward Pro-Grid DE4820 filter, 1 skimmer, 1 MD, salty, soft, and absurdly expensive Texas public water.

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    Re: Polaris p380 Problems

    Head float has water in it.

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    Re: Polaris p380 Problems

    The head float does not have water in it. I took it apart and replaced the bearings, supply tube o ring, gear drive kit, and belts and it all works fine now.
    15000 Gallon IG Gunite Pool(White, redone late 2016), Single Speed Switchless (AO Smith Centurion motor) Pump, Polaris P380(Ugh), Pentair booster pump, Hayward Pro-Grid DE4820 filter, 1 skimmer, 1 MD, salty, soft, and absurdly expensive Texas public water.

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    Re: Polaris p380 Problems

    Weird.

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