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Thread: Question about converting pool

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    Question about converting pool

    A little about myself, I am a first time pool owner and have limited knowledge about pools. For the past two years, I have been adding tablets and liquid chlorine (when needed) to keep the pool water good. I keep my chlorine levels rather high to prevent algae growth. I also try to keep all my other chemicals inline as well. With all that said, I really want to convert my pool to a saltwater pool. A little about the pool, it is 16,275 gallons with no hot tub. Based on my research, I think I want the hayword SWG with the T15 Cell. I choose the T15, because I am hopping it will last longer than the smaller cells. Is this a fair assumption keeping in mind I will clean each of the cells the same and according to the manufacturer.

    One last thought, I want to switch to a SWG system because I don't want to worry about adding tablets and liquid chlorine. I want the softer water feeling and my want my kids to not come out of the pool with burning eyes and smelling like a pool store.

    Knowing all this, am I making the right decision?

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    Re: Question about converting pool

    Welcome to TFP!

    The Hayward will help eliminate the need to manually add chlorine, but it might not help with the burning eyes and selling like a pool store. If you are experiencing those effects then the pool water is not balanced and that is your issue.

    Please read, ABC's of Pool Water Chemistry.

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    16k gal plaster with raised spa, Jandy DEV60 filter, 2 HP 2-speed SHPF Jandy Stealth pump
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    Test Kits . Pool Math . Chlorine/CYA Chart . The SLAM Process

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    zimm's Avatar
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    Re: Question about converting pool

    Welcome to the forum! Yes you're making the right decision. SWG is a great way to reduce or even eliminate having to add chlorine.

    Buuuut.... before you jump in there, you should really consider buying your own test kit and running the numbers on your pool water and post them here. Then we can really help out. Burning eyes is a Ph issue, not chlorine. Check out the info in my signature for some casual reading. Testing your own water will save you so much money and you'll probably never have to visit the pool store again.
    45'x12' 17k gal, IG plaster, Pool Pilot Nano+ SWG, 1/2hp Whisperflo pump, PAC-FAB TA-60D sand filter, Raypak 266 heater
    Pool School + Test Kit + Pool Math = Trouble Free Pool

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    Re: Question about converting pool

    Thanks for the feedback. I do have a Taylor test kit and test my water. Yield every week and also goto my local pool store to have the water tested. I only go to the pool store to match their numbers against mine to make sure I am doing doing/reading the test kit right.

    As of this AM, my numbers are:
    TC:5
    FC:5
    PH: 7.5
    ALK: 90
    CAL: 210
    CYA: 100

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    zimm's Avatar
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    Re: Question about converting pool

    Ph is fine. Your CYA is waay high though. Are you using tabs? If so, I would stop so your CYA doesn't climb any higher.

    The good news is that CYA of 70-80 is perfect for a salt pool but you should be at 30-50. Then you can lower your FC levels. Now your FC level should be 7 mininum for that amount of CYA.

    Chlorine-CYA Chart
    45'x12' 17k gal, IG plaster, Pool Pilot Nano+ SWG, 1/2hp Whisperflo pump, PAC-FAB TA-60D sand filter, Raypak 266 heater
    Pool School + Test Kit + Pool Math = Trouble Free Pool

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    Re: Question about converting pool

    I believe my FC is probably higher, but my Taylor teat kit doesn't go any higher of 5. Water is crystal clear and no algae. If I am to stop using tabs, what do I use in the meantime? Liquid? Then I need to figure out how much. I usually add one jog twice a month.
    16,275 gallon IG Pool
    Hayward VS pump
    No spa

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    zimm's Avatar
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    Re: Question about converting pool

    That's why we recommend one of the test kits (see link in my signature) because they have the Chlorine FAS/DPD test which lets you test higher than 5. You can get just the FAS/DPD test if you already have everything else. http://tftestkits.net/FAS-DPD-Chlori...-test-p47.html

    Stop using the tabs, but keep them for occasional use, such as going on vacation. You can't afford to add any more CYA to the water. You can use liquid chlorine or plain bleach, they're the same stuff just different concentrations. Pool math (again, link in my signature) will tell you how much to add after you punch in your information.

    Without the tabs, you'll probably need to add a little chlorine daily. That's why the salt water generator is so nice, it takes that chore out.

    Please put your pool info into your signature so we can help more in the future if you have questions. Getting Started

    And feel free to read up in pool school too!
    45'x12' 17k gal, IG plaster, Pool Pilot Nano+ SWG, 1/2hp Whisperflo pump, PAC-FAB TA-60D sand filter, Raypak 266 heater
    Pool School + Test Kit + Pool Math = Trouble Free Pool

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    Re: Question about converting pool

    I used to use tabs and my CYA is now at 60. I add about 3 jugs of bleach a week to keep my chlorine around 7-8 ppm. I bet you may have combined chlorine causing the burning eyes and smell. Please do yourself a favor and get a good test kit and then read, read and re-read pool school so you know what you need to do to keep the chemistry correct.

    You will be doing yourself a favor to install a SWG as it will lessen the amount of bleach you have to purchase to keep that part of the chemicals in balance. I hate buying cases and cases of bleach to keep up with the demand.

    The trade off off you will have will also be buying more muratic acid as your tablets are acidic and the SWG will also raise the pH.
    26k gal, IG, Pebble Tec, DE filter/48sq'/144 GPM, 3hp Intelliflo running @ <1400 rpm 24/7

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    Re: Question about converting pool

    So I have made the decision to convert to a SWG. My only remaining question is, should I get the 40k cell or the 25k cell. I am referring to the Hayward T9 and the Hayward T15. My pool is 16,275 gallons. The price difference is only about 100 dollars.

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    Re: Question about converting pool

    I don't have a SWG but from what I have read you want twice the capacity so the 40k cell is probably the best choice.
    Inground 22k gallon gunite 15x31 main pool, 15x7 wading pool/sunning deck, hot tub/with overflow (9' octagon with limestone top) & slide NSWG, Aqua Blue Pebble Sheen
    Filter dual cartridge Sta-rite 450sq/ft, TF-100 Test Kit
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    Auto pool cover, Polaris 280 auto pool cleaner, Jandy AqualinkRS8 Remote Control System

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    sargent's Avatar
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    Re: Question about converting pool

    T15. The T9 may be large enough, but you may have to run the pump longer, so it would cost you more in the long run.


    14k gal IG vinyl, Jandy Flopro 1 hp up-rated, 2 spd pump, Hayward 325 sq ft cartridge filter, Circupool Si-40 SWCG

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    zimm's Avatar
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    Re: Question about converting pool

    Go big. Especially for only $100 more. It'll have to run less which makes it last longer.
    45'x12' 17k gal, IG plaster, Pool Pilot Nano+ SWG, 1/2hp Whisperflo pump, PAC-FAB TA-60D sand filter, Raypak 266 heater
    Pool School + Test Kit + Pool Math = Trouble Free Pool

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