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Thread: SWG for large above ground pool?

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    SWG for large above ground pool?

    Hello, new here and new to owning a 'real' pool so I know next to nothing. I admit that right up front.

    Installing a 33' round pool in 2 weeks and we want to use a SWG. However, I believe we will have 28,500 gallons of water and most of the SWG systems seem to be rated for up to 18,000 gallons. I found one Hayward model for up to 23,000 gallons. Is there any SWG made for an above ground pool larger than that? I have googled quite a bit and I'm finding nothing, so I apologize if this is a dumb question!
    27k gallon 33' round, partially buried 22" Sandman sand filter, 1.5hp 2 speed TidalWave pump, Pentair 'Lil Shark with leaf canister, TF-100 Test Kit

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    Patrick_B's Avatar
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    Re: SWG for large above ground pool?

    Welcome to TFP!

    I don't know what they have for AG pools, but we suggest a SWG at least 1.5 X the rated size for a given pool.

    If you want to learn about pool care, you came to the right place, and there are no dumb questions. We enjoy helping people learn.
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    JasonLion's Avatar
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    Re: SWG for large above ground pool?

    You can almost certainly use an in-ground pool SWG. You will need hardwired electrical service and the pool must be bonded. Most very large above ground pools do both of those things anyway.

    The other option is to use two smaller SWG units.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: SWG for large above ground pool?

    Thanks! I didn't even know two units were a possibility. Our pool store didn't recommend the SWG, I inquired about it, and I'm seemingly on my own to figure it all out!
    27k gallon 33' round, partially buried 22" Sandman sand filter, 1.5hp 2 speed TidalWave pump, Pentair 'Lil Shark with leaf canister, TF-100 Test Kit

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    Re: SWG for large above ground pool?

    The Jandy FSOFT1400 system is good to 40,000 Gals

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    Mod Squad woodyp's Avatar
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    Re: SWG for large above ground pool?

    I have...NO...idea why there are SWGs for a normal above ground pool vs. an in-ground pool. Wouldn't matter to me.
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    Re: SWG for large above ground pool?

    Whatever your choice is, just make sure the salt water does not void any warranty. It probably won't have any affect on your pool, but your manufacturer may say otherwise. I was thinking SWG, until I read the fine print on my warranty. To be honest, dumping chlorine/bleach in every day, or every other day is really no big deal.
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    Re: SWG for large above ground pool?

    I do not know much about pools (still reading Pool School!) so I was just going by how I saw things advertised. Some are billed as being for above ground and some in ground, so I thought there must be some distinguishing feature I wasn't aware of yet. ? If the Jandy would work for us that would be great!

    One of the reasons we chose this pool is because it's salt friendly. One of my kids has skin sensitivity to bleach/chlorine tabs for whatever reason, but does ok in salt pools.
    27k gallon 33' round, partially buried 22" Sandman sand filter, 1.5hp 2 speed TidalWave pump, Pentair 'Lil Shark with leaf canister, TF-100 Test Kit

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    Re: SWG for large above ground pool?

    There are several minor differences between in-ground and above ground SWGs. In-ground SWGs always have to be bonded, so they will always include a bonding lug. Above ground SWGs rarely have a bonding lug. In-ground SWGs are normally hardwired, so they will almost never come with a power cord. Above ground SWGs are almost always plugged into an outlet and will almost always come with a power cord. In-ground SWGs are almost always hard plumbed with glued PVC connections. Above ground SWGs are almost always connected to hoses so they will come with barbed fittings suitable for hoses.

    Most of these can be easily converted to the other style with the appropriate adapters/wiring. The only serious limitation is that you often can't bond an above ground SWG that doesn't have a bonding lug, and thus using that SWG on an in-ground pool is often a code violation. Of course a few of the above ground SWGs come with bonding lugs these days.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: SWG for large above ground pool?

    Quote Originally Posted by LI poolguy View Post
    Whatever your choice is, just make sure the salt water does not void any warranty. It probably won't have any affect on your pool, but your manufacturer may say otherwise. I was thinking SWG, until I read the fine print on my warranty. To be honest, dumping chlorine/bleach in every day, or every other day is really no big deal.
    Does it give a specific salt level that will void the warranty? I remember seeing in a couple threads where people had only used bleach, and had built up a salt level of 1000ppm or more.


    30K gallon IG vinyl. 1.5HP 2-speed Waterway Mustang pump. 600 lb sand filter. Polaris 280. Circupool SI-60+. TF-100

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    JasonLion's Avatar
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    Re: SWG for large above ground pool?

    I have never seen an above ground pool warranty that lists an acceptable salt level. The wording varies, but it is almost always fairly vague.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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    Re: SWG for large above ground pool?

    Quote Originally Posted by JasonLion View Post
    There are several minor differences between in-ground and above ground SWGs. In-ground SWGs always have to be bonded, so they will always include a bonding lug. Above ground SWGs rarely have a bonding lug. In-ground SWGs are normally hardwired, so they will almost never come with a power cord. Above ground SWGs are almost always plugged into an outlet and will almost always come with a power cord. In-ground SWGs are almost always hard plumbed with glued PVC connections. Above ground SWGs are almost always connected to hoses so they will come with barbed fittings suitable for hoses.

    Most of these can be easily converted to the other style with the appropriate adapters/wiring. The only serious limitation is that you often can't bond an above ground SWG that doesn't have a bonding lug, and thus using that SWG on an in-ground pool is often a code violation. Of course a few of the above ground SWGs come with bonding lugs these days.
    Thank you, this is very helpful!
    27k gallon 33' round, partially buried 22" Sandman sand filter, 1.5hp 2 speed TidalWave pump, Pentair 'Lil Shark with leaf canister, TF-100 Test Kit

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