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Thread: Really bad pool levels

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    Really bad pool levels

    Ok here is the short - so I was Haboobed, got my pool clear, then my strainer box crack, plast aid'ed that, now its working again... Ive been hitting it with lots of chlorine but unable to get my levels to rise or stay over night. I have tested and have seen no CC's also. I have 0 TC. My TA is 20?!? and my CYA well there isn't enough water in the tester to and the tube isn't long enough! the water is mostly clear to the top...

    TC-0
    PH-6.8
    TA-20
    CYA-Ungodly high!

    Can you help me and tell me what I should do? do I drain this thing 60% and add new water?

    I have a sand filter and the pool is 1bout 11500 gallons.

    Also I have been running the aerator a lot to try and cool the pool down ->AZ

    thanks much!
    Cornerstone 18 x 36 Rectangle 22,000 gallons
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    1.5hp 220 volt energy efficient High Performance Pump
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  2. Back To Top    #2

    Join Date
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    Re: Really bad pool levels

    Your numbers seem a little odd. You are running an aerator but have crashed the PH and have no TA? Do you use a lot of Pucks for chlorine?

    The description of the CYA test would imply no CYA (you fill the tube and still see the dot? Thus needing a longer tube?)

    Your first step is going to be to stabilize that PH. Your test may bottom out at 6.8 so you could be lower which is no good.

    If you have 0 CYA then you are just loosing the chlorine to sunlight. If you've been using pucks - then something funny is happening.

    I'd run all the tests you have and posts the results again. It'll help us look for discrepancies.
    16K Gal Plaster | Compupool SWG | Intelliflow VF | TF-100

  3. Back To Top    #3

    Join Date
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    Re: Really bad pool levels

    What do you use to add chlorine on a day-to-day basis, and what do you use when "hitting it hard"?

    Could you try explaining what you do in the test a little more clearly and how you got the result of "ungodly high" (they should mark that on the tubes ) ?
    90k litres, outdoor in ground pool, concrete, painted (I hate paint)
    Sta-Rite 5P2R 1.5 Hp pump, undersized sand filter (needs upgrading).

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    Re: Really bad pool levels

    Well Ive been hitting it hard with Chlorine, I use bleach 6% the big jugs i think 96oz. Ive been dumping about half a jug every day sometimes a lil more at night. I hadn't done a full test in a lil bit because the pool was rock solid for a while. Now after these storms, and the pool not being super clear and kind of a cloudy/green from not fully recovering I have gotten back on it. In regards to my CYA the water is just clear in the tube all the way to the top. The TA blew me away, It only took 2 drops to turn pink.

    The PH, I have put about 2 gallons in the pool over the past 2 to 3 weeks. and the PH is very low all bet lower than 6.8 but it was higher recently. I did use some old acid, could that be the problem?
    Cornerstone 18 x 36 Rectangle 22,000 gallons
    Hayward SS24T High Rate Pro Series Sand Filter
    Inground Vinyl Liner with Polymer Walls
    1.5hp 220 volt energy efficient High Performance Pump
    Intermatic swimming pool Timer TR104P3
    Aqua Genie Skimmer System (2)
    Hayward Color Logic light
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  5. Back To Top    #5
    bobodaclown's Avatar
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    Re: Really bad pool levels

    Use borax to bring PH up, Acid to lower it. PH of 6.8 is too low. It needs to be around 7.5. Use the pool calculatorhttp://www.poolcalculator.com/ to tell you how much to use.

    What test kit are you using? Please provide a full set of results:
    FC
    CC
    TC
    TA
    CH
    CYA

    Borates if you use them
    17K Kidney Shaped Pool Concrete (Diamond Bright) Pool, 3/4 hp 2 speed 115V Sta-rite Duraglas PEA5D-180L/P2R5D-181L (Impeller C105-92PS Diffuser C1-216P), 1.5 piping, Pentair CC100 Filter , Heat Siphon 100K BTU Heat Pump Pool Heater, Flow meter Blue White Flowmeter Model No. F-30150P, Hayward Astrolight SP0581N, SWCG CalimarTitanium Edition TE45 , Dolphin Nautilus Plus with CleverClean, Lakeland Florida

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    frogabog's Avatar
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    Re: Really bad pool levels

    If you haven't added CYA, haven't used pucks, and haven't used dichlor granules you can bet that your CYA is 0.

    If any of those things have gone into the pool ever, there's some CYA but it does sound like it's under 20 which the CYA test can't test for very well.

    Loosing all your chlorine regularly goes hand in hand with low or no CYA. Time to add some manually.

    Trust your test results, maybe do it all one more time to be sure and then start adjusting the pool according to those results. Get some chlorine in the pool, test it half an hour later and give us a FC/TC/CC reading. If the pool is green, chances are there's algae and you need to begin the shocking process.

    Add enough CYA to reach 30ppm before you begin shocking, it'll help you keep chlorine in the pool during the process. You could go with 20-25ppm as well to save some cashola on bleach (the CYA test should register well at 25ppm, 20ppm is about the low limit for it though. Under 20ppm is pure speculation). Use the pool calculator to determine how much CYA to add (in a sock, tied off on the ladder or in front of a return, squish it regularly till gone from the sock).

    Adjust PH up to 7.2 before shocking btw. Why did you use the acid and when? How high was the PH when you added it?

    Any more info about your pool? Vinyl? Plaster? If you put your pool specifications in your sig line (user control panel) it'll always be there for us to reference.
    Where kids swim in 54 degree water, turn blue, and giggle happily cuz they got a POOL!
    Year 3 BBB -15' x 48" Intex Metal Frame - Was using (2) 1000gph Intex cartridge filters (see Full time pumping Intex). 2012, converted to 1600gph and sand filter+SWG = Sand filter love affair!
    Don't waste time and energy looking for a better value on test kits, the TF100 is the best deal around. I did the looking and spent the extra money, but you don't have to make the same mistake. Just go here: TFTestkits. I use Pool Calculator for min/max, and shocking chlorine levels.

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    Mod Squad Bama Rambler's Avatar
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    Re: Really bad pool levels

    STOP! The first thing you need to adjust is the TA!!! It's much too low. Use Baking soda to bring that up to about 70. Then retest and adjust your pH.

    Once you've done that and report back, we'll deal with the rest of the problems.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Re: Really bad pool levels

    Ok - this makes more sense.

    Your CYA is 0 - so sunlight is breaking down your FC almost immediately.

    The age of your acid is not the issue - it's the AMOUNT. 2 gallons of 31% Muriatic Acid could indeed crash your PH and TA in 11,000 gallons of water. Your TA is low enough that you may be seeing some erratic PH moves - so correct that and see where PH is landing.

    I would -

    Raise the CYA to 30 to start
    Get the TA up with baking soda - target 60 (or 70) to start

    These targets are on the low side of the recommended levels - that way you can creep up on more "perfect" levels over time. Are you familiar with the Pool Calculator?
    16K Gal Plaster | Compupool SWG | Intelliflow VF | TF-100

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    dmanb2b's Avatar
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    Re: Really bad pool levels

    Please adjust TA and PH 1st!!!! Then worry about CYA and FC. With TA at 10 and PH likely below 4.5 you are at risk of damaging your pool surface and equipment.
    24'x52" AGP (13,500 Gallons), Intex SWG, (2)Solar Bear 4x20 panels, Hayward S220T Filter, 1/2hp Pentair Superflo

    Pool School, TFTestKits, Pool Calculator

  10. Back To Top    #10

    Re: Really bad pool levels

    Ok retested

    FC 0
    CC 0
    TC 0
    PH 6.8
    CYA 0 (water is clear)
    TA 30

    The water in my pool is blue with a green tint more like its cloudy or was after the they replastered and filled. So I'm not sure if there is algae growth?
    Cornerstone 18 x 36 Rectangle 22,000 gallons
    Hayward SS24T High Rate Pro Series Sand Filter
    Inground Vinyl Liner with Polymer Walls
    1.5hp 220 volt energy efficient High Performance Pump
    Intermatic swimming pool Timer TR104P3
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    Hayward Color Logic light
    Liner: Oxford aquarius 28 MILL

  11. Back To Top    #11

    Re: Really bad pool levels

    what is the method of adding baking soda? just go get arm and hammer or whatever?

    thanks a lot everyone!
    Cornerstone 18 x 36 Rectangle 22,000 gallons
    Hayward SS24T High Rate Pro Series Sand Filter
    Inground Vinyl Liner with Polymer Walls
    1.5hp 220 volt energy efficient High Performance Pump
    Intermatic swimming pool Timer TR104P3
    Aqua Genie Skimmer System (2)
    Hayward Color Logic light
    Liner: Oxford aquarius 28 MILL

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    Mod Squad Bama Rambler's Avatar
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    Re: Really bad pool levels

    You can slowly pour it in front af a running return. You can moix it in a bucket of water if you want to.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  13. Back To Top    #13

    Re: Really bad pool levels

    cool im going to head out and get some AnH right now, thanks!
    Cornerstone 18 x 36 Rectangle 22,000 gallons
    Hayward SS24T High Rate Pro Series Sand Filter
    Inground Vinyl Liner with Polymer Walls
    1.5hp 220 volt energy efficient High Performance Pump
    Intermatic swimming pool Timer TR104P3
    Aqua Genie Skimmer System (2)
    Hayward Color Logic light
    Liner: Oxford aquarius 28 MILL

  14. Back To Top    #14
    bobodaclown's Avatar
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    Re: Really bad pool levels

    You could use pucks for a season, get both chlorine and CYA in one shot.
    17K Kidney Shaped Pool Concrete (Diamond Bright) Pool, 3/4 hp 2 speed 115V Sta-rite Duraglas PEA5D-180L/P2R5D-181L (Impeller C105-92PS Diffuser C1-216P), 1.5 piping, Pentair CC100 Filter , Heat Siphon 100K BTU Heat Pump Pool Heater, Flow meter Blue White Flowmeter Model No. F-30150P, Hayward Astrolight SP0581N, SWCG CalimarTitanium Edition TE45 , Dolphin Nautilus Plus with CleverClean, Lakeland Florida

  15. Back To Top    #15

    Re: Really bad pool levels

    I have pucks but i dont use them, I put in 128oz of baking soda
    Cornerstone 18 x 36 Rectangle 22,000 gallons
    Hayward SS24T High Rate Pro Series Sand Filter
    Inground Vinyl Liner with Polymer Walls
    1.5hp 220 volt energy efficient High Performance Pump
    Intermatic swimming pool Timer TR104P3
    Aqua Genie Skimmer System (2)
    Hayward Color Logic light
    Liner: Oxford aquarius 28 MILL

  16. Back To Top    #16
    Mod Squad Bama Rambler's Avatar
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    Re: Really bad pool levels

    Retest your pH and adjust it as needed.
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

  17. Back To Top    #17

    Re: Really bad pool levels

    Ok after a 12 hour cycle im now looking at

    fc 0
    cc 0
    tc 0
    ph 7.8
    ta 130
    cya 0

    I may have over shot the baking soda. Should I now lower my TA a lil bit with acid/aeration process? How should I go about getting my CYA up? I have pucks on hand and know those raise CYA but pretty slowly.
    Cornerstone 18 x 36 Rectangle 22,000 gallons
    Hayward SS24T High Rate Pro Series Sand Filter
    Inground Vinyl Liner with Polymer Walls
    1.5hp 220 volt energy efficient High Performance Pump
    Intermatic swimming pool Timer TR104P3
    Aqua Genie Skimmer System (2)
    Hayward Color Logic light
    Liner: Oxford aquarius 28 MILL

  18. Back To Top    #18
    frogabog's Avatar
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    Re: Really bad pool levels

    Personally, I prefer adding CYA manually. That way I know how much I put in which gives me a value to insert into the calculator vs an unknown that I have to test for to be able to quantify.

    Put the CYA into a sock (any old sock), tie a rubber band at the top and hang it in front of a return or off the ladder. Then go squish it hourly till it's gone from the sock. HTH brand sold at walmart is very soluble and squishes out right fast as compared to the pool store brands. Aim for about 30ppm CYA for now. If you need more you can always add it later.

    As far as the TA, if you lower the ph to 7.2 with acid, it will probably come up on it's own w/o aeration (give it a day, test) or you can aim for 7.3-7.4 instead. Go ahead and lower it now, 7.8 is about as high as you want it to be already. If you stick any tablets in, remember they will lower pH as well.
    Where kids swim in 54 degree water, turn blue, and giggle happily cuz they got a POOL!
    Year 3 BBB -15' x 48" Intex Metal Frame - Was using (2) 1000gph Intex cartridge filters (see Full time pumping Intex). 2012, converted to 1600gph and sand filter+SWG = Sand filter love affair!
    Don't waste time and energy looking for a better value on test kits, the TF100 is the best deal around. I did the looking and spent the extra money, but you don't have to make the same mistake. Just go here: TFTestkits. I use Pool Calculator for min/max, and shocking chlorine levels.

  19. Back To Top    #19

    Re: Really bad pool levels

    awesome thanks!
    Cornerstone 18 x 36 Rectangle 22,000 gallons
    Hayward SS24T High Rate Pro Series Sand Filter
    Inground Vinyl Liner with Polymer Walls
    1.5hp 220 volt energy efficient High Performance Pump
    Intermatic swimming pool Timer TR104P3
    Aqua Genie Skimmer System (2)
    Hayward Color Logic light
    Liner: Oxford aquarius 28 MILL

  20. Back To Top    #20

    Re: Really bad pool levels

    Just wanted to let everyone know who helped out, my pool is looks like it is filled with spring water! thanks so much, my GF is super happy ; ) thus making me happy!
    Cornerstone 18 x 36 Rectangle 22,000 gallons
    Hayward SS24T High Rate Pro Series Sand Filter
    Inground Vinyl Liner with Polymer Walls
    1.5hp 220 volt energy efficient High Performance Pump
    Intermatic swimming pool Timer TR104P3
    Aqua Genie Skimmer System (2)
    Hayward Color Logic light
    Liner: Oxford aquarius 28 MILL

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