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Thread: SWG then what?

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    itodd's Avatar
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    SWG then what?

    I have a 14 foot by 4 foot round Intex Ultra Metal Frame Pool. It holds around 4600 gallons. I'm using the filter pump that came with the pool (637R) and I have put in a saltwater chlorine generator. The pool is nearly full with well water. I've added the 115lbs of salt.

    The directions say to run the filter pump 24 hours and then turn on the SWG.

    Now what? Do I add cyanuric acid after the SWG has run for a few hours?

    The pH is low. Will the cyanuric acid lower the pH even more?

    What is the best thing to add to raise the pH to the proper level?

    Do I add these items one at a time and check the water to see what needs to be done next? I'm afraid that adding one chemical with throw another level off.

    Do I need to put in an algaecide?
    4600 gallons, Intex Ultra Metal Frame 14' round 4' depth, SWG, cartridge filter pump, 2500 gph, Pool finish date: 7/16/13.

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    Mod Squad jblizzle's Avatar
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    Re: SWG then what?

    wave: Welcome to TFP!!!

    Answers in red below:
    Quote Originally Posted by itodd
    I have a 14 foot by 4 foot round Intex Ultra Metal Frame Pool. It holds around 4600 gallons. I'm using the filter pump that came with the pool (637R) and I have put in a saltwater chlorine generator. The pool is nearly full with well water. I've added the 115lbs of salt.

    The directions say to run the filter pump 24 hours and then turn on the SWG.

    Now what? Do I add cyanuric acid after the SWG has run for a few hours? You should not turn the SWG for 24 hours after adding the salt. You should also be adding CYA right away ... at least to target 40-50ppm to start and then raise up to the recommended 70-80ppm

    The pH is low. Will the cyanuric acid lower the pH even more?
    What is your pH? Yes it will.

    What is the best thing to add to raise the pH to the proper level?
    What is your TA? Borax affects pH the most.

    Do I add these items one at a time and check the water to see what needs to be done next? I'm afraid that adding one chemical with throw another level off.
    Have you found and been using the poolcalculator.com? Many thing are interrelated and it is always a good idea to test before adding anything.

    Do I need to put in an algaecide?
    We rarely ever recommend the use of algaecides ... especially any that have copper in them.
    I suggest reading up in Pool School if you have not already. Since you said you are using well water, you may need to add a metal sequestrant (see article in Pool School)

    If you want more details about chemical adjustments, you will need to provide the actual test results ... realizing in advance that we do not put much faith in any test strips or pool store testing.
    Jason, TFP Moderator
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    itodd's Avatar
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    Re: SWG then what?

    Quote Originally Posted by jblizzle
    wave: Welcome to TFP!!!

    Answers in red below:
    Quote Originally Posted by itodd
    I have a 14 foot by 4 foot round Intex Ultra Metal Frame Pool. It holds around 4600 gallons. I'm using the filter pump that came with the pool (637R) and I have put in a saltwater chlorine generator. The pool is nearly full with well water. I've added the 115lbs of salt.

    The directions say to run the filter pump 24 hours and then turn on the SWG.

    Now what? Do I add cyanuric acid after the SWG has run for a few hours? You should not turn the SWG for 24 hours after adding the salt. You should also be adding CYA right away ... at least to target 40-50ppm to start and then raise up to the recommended 70-80ppm

    The pH is low. Will the cyanuric acid lower the pH even more?
    What is your pH? Yes it will.My pH (directly from the well) is around 6.8

    What is the best thing to add to raise the pH to the proper level?
    What is your TA? Borax affects pH the most.My TA is right at 80 ppm

    Do I add these items one at a time and check the water to see what needs to be done next? I'm afraid that adding one chemical with throw another level off.
    Have you found and been using the poolcalculator.com? Many thing are interrelated and it is always a good idea to test before adding anything. I have not used poolcalculator. I need to go and test my numbers again and write these down.

    Do I need to put in an algaecide?
    We rarely ever recommend the use of algaecides ... especially any that have copper in them.
    I suggest reading up in Pool School if you have not already. Since you said you are using well water, you may need to add a metal sequestrant (see article in Pool School)

    If you want more details about chemical adjustments, you will need to provide the actual test results ... realizing in advance that we do not put much faith in any test strips or pool store testing.
    I have cyanuric acid and will work on getting that in the pool before I even turn on the SWG
    4600 gallons, Intex Ultra Metal Frame 14' round 4' depth, SWG, cartridge filter pump, 2500 gph, Pool finish date: 7/16/13.

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    Mod Squad jblizzle's Avatar
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    Re: SWG then what?

    Your pH is too low, but the TA is fine. Definitely raise the pH using borax in to the 7s ... keep an eye on it as the CYA will lower it again. I would raise the pH first.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Re: SWG then what?

    Borax as in the washing detergent in the grocery store? How much would I need to add?

    I just checked my levels:
    PH 6.8 (using the drops and that is the lowest it would read)
    TA 80
    TH 100
    TC 0 (SWG not on yet)
    FC 0 (SWG not on yet)
    Stablizer: I added a pound to a 4600 gallon pool.

    This forum is great to get answers!

    THe pool is several inches from being full. Going to give my well pump a rest and finish tomorrow. The filter pump has been running for several hours and will let it run until tomorrow around 5pm.
    4600 gallons, Intex Ultra Metal Frame 14' round 4' depth, SWG, cartridge filter pump, 2500 gph, Pool finish date: 7/16/13.

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    Mod Squad jblizzle's Avatar
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    Re: SWG then what?

    Use poolcalculator.com to tell you how much to add. You should probably read some in Pool School:
    ABCs of Water Chemistry
    Recommended Pool Chemicals

    And start using some bleach to keep the FC up around 2ppm initially until you get the CYA added and raise the CYA. See this for the recommended FC levels:
    pool-school/chlorine_cya_chart_shock
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Re: SWG then what?

    I would add 4 cups of bleach and work on raising the pH. The pH could very well be lower than 6.8 and I suggest to add the borax and test about 30 to 60 minutes later and adjust again if needed.
    16k gal plaster with raised spa, Jandy DEV60 filter, 2 HP 2-speed SHPF Jandy Stealth pump
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    Re: SWG then what?

    Quote Originally Posted by ping
    I would add 4 cups of bleach and work on raising the pH. The pH could very well be lower than 6.8 and I suggest to add the borax and test about 30 to 60 minutes later and adjust again if needed.

    I'm guessing the pH is lower than 6.8 also. I actually had some of the Baking Soda Washer Booster so I added 23 ounces.

    I will buy some bleach tomorrow and add that.

    All of this advice is very helpful!


    Beyond the water chemistry stuff, I worked two weeks getting the ground level. We've had lots of rain and it kept filling in my hole but that kept the Carolina red clay soft and I was able to use the "mud puddle" as a natural level. As the water dried up, I was able to determine the high and low points and it is amazingly level. I surprised myself.
    4600 gallons, Intex Ultra Metal Frame 14' round 4' depth, SWG, cartridge filter pump, 2500 gph, Pool finish date: 7/16/13.

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    Mod Squad jblizzle's Avatar
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    Re: SWG then what?

    What are the ingredients in "Baking Soda Washer Booster" I hope it does not have any additives
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Re: SWG then what?

    It is Arm & Hammer All Natural Super Washing Soda. It contains sodium carbonate. It also says 100% fragrance and phosphate free.
    4600 gallons, Intex Ultra Metal Frame 14' round 4' depth, SWG, cartridge filter pump, 2500 gph, Pool finish date: 7/16/13.

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    Mod Squad jblizzle's Avatar
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    Re: SWG then what?

    Ah, ok, that is just soda ash / washing soda ... did not realize it was mentioned by name in the Recommended Pool Chemicals article.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Re: SWG then what?

    I've added the "soda ash" and cyanuric acid today. The pump is running 24 hours. Can I add some bleach tomorrow, wait awhile and finally get in?

    Or do i need to get the levels stable?
    4600 gallons, Intex Ultra Metal Frame 14' round 4' depth, SWG, cartridge filter pump, 2500 gph, Pool finish date: 7/16/13.

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    Mod Squad jblizzle's Avatar
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    Re: SWG then what?

    You can add bleach now ... in fact you should.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
    500 sqft Heliocol solar panels, ThePoolCleaner, TF-100 test kit w/ SpeedStir
    Pool School + Test Kit + PoolMath = A TROUBLE FREE POOL
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    itodd's Avatar
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    Re: SWG then what?

    I added 14 ounces of bleach a few minutes ago. I'm going to check the levels and see where I am at with pH and other numbers. I bought some borax today also to have on hand. I think it is going to take a little work to get the pH up. Right now I'm enjoying all the "tinkering" with the water. I have a stressful job and it has been nice (but hard as **** work) getting the pool ready.
    4600 gallons, Intex Ultra Metal Frame 14' round 4' depth, SWG, cartridge filter pump, 2500 gph, Pool finish date: 7/16/13.

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