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Thread: New AutoPilot Low Chlorine

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    New AutoPilot Low Chlorine

    I have a new Autopilot Digital with the SC-48 cell. It was installed two days ago. I ran my pump for the first 24 hours and did not get much of a chlorine reading. I then ran it for 12 hours the next day and g0t a reading of almost 1. Wonder what I should do, I was thinking of one of the following:

    1. Don't panic give it another couple of days (makes me nervous because I live is Arizona - Temperature is 102)

    2. Shock with a gallon or 2 of bleach.

    3 Shock with MPS.

    4. Run the AutoPilot in Boost mode.

    PH 7.2
    ALK 130
    CYA 90
    Hardness 350
    FC 1
    Salt 3300 PPM
    17,000 Gallons
    Water is clear (amazing at this chlorine level in this heat)
    Cell is at Level 3 - 50% (upped it based on low chlorine after two days)

    Thanks,

    Mark
    Priscilla
    16x32 inground vinyl, 15,000gal, sand filter

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    duraleigh's Avatar
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    Hi, Mark,

    A couple of jugs of clorox would be some cheap, effective insurance 'til you get the issue sorted out. That would be my first choice and I'd do it very soon.....like tomorrow AM.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3

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    Before I saw your response I put the Pool Pilot in boost mode overnight. The chlorine now reads 3. I put the Pool Pilot back into regular mode. Pool looks great.
    Priscilla
    16x32 inground vinyl, 15,000gal, sand filter

  4. Back To Top    #4

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    check and make sure you don't have any Combined Chlorine.

    I don't think that you would need to bump it up to Cell Power 3, but just monitor it and make sure you're not making too much chlorine.
    Sean Assam - Sean@teamhorner.com
    National Accounts and Commercial Products Manager
    AquaCal Heat Pumps www.aquacal.com
    AutoPilot Salt Chlorine Generators www.autopilot.com

  5. Back To Top    #5

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    Sean,

    My Combined Chlorine is 0. Should I turn the cell power back down to 2? Is it bad to have the cell power at 3? Just worry with today's temperature at 102. This is the best my pool has looked in years!

    Thanks,

    Mark
    Priscilla
    16x32 inground vinyl, 15,000gal, sand filter

  6. Back To Top    #6

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    If you keep an eye on your FC level, back off the % if you're getting above 4 ppm. If you find that you've dropped down to less than 25%, I would recommend dropping down to Cell Power 2 and adjusting your % to 50%, then fine tune to so that you're maintaining the FC about 3 ppm (my ideal level).
    Sean Assam - Sean@teamhorner.com
    National Accounts and Commercial Products Manager
    AquaCal Heat Pumps www.aquacal.com
    AutoPilot Salt Chlorine Generators www.autopilot.com

  7. Back To Top    #7

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    are you still running it for 24 hours or backed it off to 12? I'm experiencing a similar issue with my Aquarite. It's at 90% with hardly any detectable FC. The timer was set to run for only 12 hours, I just realized yesterday, and set it to run for 24 hours now and hope to see the chlorine levels come up.
    My Pool - 18x24 fully setup Cabana, 22x48 gunite/quartz plaster (3-5-3 depth) & 8' spa w/ spill and 5' natural rock waterfall; Hayward DE filter/pumps/heater; Hayward Pro Logic controller; Phantom cleaner. Finished 06/01/07.

    RedishConstruction.com

  8. Back To Top    #8

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    I am running it for 12 hours. The good news is that this morning I get a FC of 3. I put it in boost mode for 12 hours and then ran it regular for 12 hours the next day. After that I got a FC of 3.
    Priscilla
    16x32 inground vinyl, 15,000gal, sand filter

  9. Back To Top    #9

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    Quote Originally Posted by Poolsean
    If you keep an eye on your FC level, back off the % if you're getting above 4 ppm. If you find that you've dropped down to less than 25%, I would recommend dropping down to Cell Power 2 and adjusting your % to 50%, then fine tune to so that you're maintaining the FC about 3 ppm (my ideal level).
    Poolsean,

    Is that for your companies SWG or personal pool only? I have been running my zodiac unit and adhering to Bens Best Guess Chart. Am I doing something harmful to my equipment/pool? Should I be dropping my FC to 3 even though my CYA numbers indicate I need to run above 3?

    Thanks!
    62,800 Litre IG Vinyl
    Sand Filter
    1HP Super Pump
    Clearwater/Zodiac LM2-24S SWG
    Aquabot Turbo Robot Cleaner
    250K NG Heater

  10. Back To Top    #10
    JasonLion's Avatar
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    Many people have found that any brand of SWG can usually be run at a chlorine level below the Min number from Ben's best guess chart. However there is some debate about why this might be and if it is really just as effective to run at that level.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  11. Back To Top    #11

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    Caustic,
    I agree with Jason's reply. I don't know the reason behind it, but it works. Personally, I wouldn't keep less than 2 ppm for regular usage, especially over the summer when all the neighborhood kids end up in my pool. If no one was using the pool all the time, I would feel comfortable at 1 ppm.
    Sean Assam - Sean@teamhorner.com
    National Accounts and Commercial Products Manager
    AquaCal Heat Pumps www.aquacal.com
    AutoPilot Salt Chlorine Generators www.autopilot.com

  12. Back To Top    #12

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    I have been fighting chlorine below 1 for over a week know. I called AutoPilot and they have me running the system from 5:00 am to 5:00pm at power 3 and 70%. I still get a chlorine reading of under 1. I am now starting to get a little Algea on walls. I need some help! My readings are:

    FC- .5
    TC- .5
    PH- 7.5
    CH- 350
    TA- 170
    CYA-100

    Thanks,

    Mark
    Priscilla
    16x32 inground vinyl, 15,000gal, sand filter

  13. Back To Top    #13
    JasonLion's Avatar
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    If you have visible algae you need to shock the pool. It is best to do this with bleach, since you want the chlorine level to come up as quickly as possible. The SWG can suppliment the bleach and will help you to maintain shock levels, but bring it back up to shock level with bleach as frequently as possible until things improve.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  14. Back To Top    #14

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    smsprague,

    Please run a TEST POOL PILOT and let me know what the system shows for salt and cell amps and cell volts.

    Also, avoid using any algaecides that contain Sodium Bromide (usually with Yellow or Mustard in the name).
    Sean Assam - Sean@teamhorner.com
    National Accounts and Commercial Products Manager
    AquaCal Heat Pumps www.aquacal.com
    AutoPilot Salt Chlorine Generators www.autopilot.com

  15. Back To Top    #15

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    Guys,

    Thanks for the response. I set the Autopilot on Super Boost at about 5:00 pm last night and by noon today my chlorine was 2 ppm.

    Sean,

    I left town for a few days before I saw your response. I will get the numbers to you when I get back on Saturday. I do know that my salt level is 3400 ppm. I have not used any algaecides.

    Thanks again,

    Mark
    Priscilla
    16x32 inground vinyl, 15,000gal, sand filter

  16. Back To Top    #16

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    Sean,

    After 3 days on Super Boost, my chlorine reading is below 1. I ran a test and got the following data:

    92 Degrees

    SC-48 Cell

    Cell Power 28V 6.3A

    Any help is appreciated,

    Mark
    Priscilla
    16x32 inground vinyl, 15,000gal, sand filter

  17. Back To Top    #17
    JasonLion's Avatar
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    As I said before, you need to shock with bleach (or another chlorine product) not with the SWG. Shocking the pool requires bringing the FC level up quickly, within minutes not days, something no SWG can do. With a CYA of 100 you are going to need to bring the FC up to at least 25 and hold it there by testing and adding chlorine at least three times a day to bring it back up to 25.

    It would also be a really good idea to get your CYA level down. Most of the tests read 100 no matter how high the CYA actually is. To get your CYA down you need to replace water.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  18. Back To Top    #18

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    Is the water clear? Are you sure your chlorine is not too high that it's bleaching out your test? You mentioned that you had activated a Superboost on Wed at 5 pm and by the next afternoon it was at 2 ppm.
    Sean Assam - Sean@teamhorner.com
    National Accounts and Commercial Products Manager
    AquaCal Heat Pumps www.aquacal.com
    AutoPilot Salt Chlorine Generators www.autopilot.com

  19. Back To Top    #19

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    The pool water is clear, but over the 3 days that I was gone a greenish brown algea has developed on the pool walls. I measured both with a Taylor kit and strips. I was gone for 3 days and when I came back the chlorine reading was about .5 ppm.
    Priscilla
    16x32 inground vinyl, 15,000gal, sand filter

  20. Back To Top    #20

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    I'd recommend the same that Jason said....Shock your pool. The numbers on the TEST POOL PILOT looks good so it should be maintaining ok, so I don't know why to got behind to allow algae to start.
    Was the salt level what the unit shows or from a test?
    Sean Assam - Sean@teamhorner.com
    National Accounts and Commercial Products Manager
    AquaCal Heat Pumps www.aquacal.com
    AutoPilot Salt Chlorine Generators www.autopilot.com

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