Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 16 of 16

Thread: pool floc

  1. Back To Top    #1

    pool floc

    My pool was not holding chlorineI was told my phosfate level was at 10000.00 floced pool went down to 2000 then was told to add commercial phos free i qt at a time seemed like chlorine levels were holding untill I added this last night chlorine was at 7 this morning 0. also my ph and alkalinity seem to be all over the place. I do know my cya level is 100. FRUSTERATED!!!
    23k gal IG Vinyl Liner
    Sand Filter Pentair Pump VS
    Electric Heat Ft Wayne Indiana
    Built 2012

  2. Back To Top    #2

    In the Industry

    Donldson's Avatar
    Join Date
    Jun 2009
    Location
    NW Ohio
    Posts
    2,637

    Re: pool floc

    Don't Panic, we can help provided we have the right information.

    Please post the test results for:
    FC
    CC
    pH
    TA
    CH
    CYA

    Also need to know your pool size, filter type (sand, cartridge?), and what you are using to chlorinate. We do not need to know you phosphate level, you will see why later.

    Finally, is your CYA 100 or is it over 100?
    JD - 28' Round Above Ground Pool, 17,000 Gallons. Dual speed Jacuzzi pump with cartridge filter. Dual speed 1 HP pump, Hayward S210T sand filter
    Pool School - PoolMath - HIGHLY Recommended Test Kits

  3. Back To Top    #3

    Re: pool floc

    fc-0
    tc-0
    CH-223
    TA-120
    PH-7.6
    CYA-109
    my pool is inground vinyl liner sand filter w auto chlorinator put in last June.
    23k gal IG Vinyl Liner
    Sand Filter Pentair Pump VS
    Electric Heat Ft Wayne Indiana
    Built 2012

  4. Back To Top    #4
    Mod Squad Bama Rambler's Avatar
    Join Date
    Jun 2009
    Location
    SouthWest Alabama
    Posts
    22,347

    Re: pool floc

    It's Alum with some muriatic acid. It wouldn't have caused the FC to drop but it surely would the pH and TA as it's about 3 pH.
    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

  5. Back To Top    #5

    Re: pool floc

    forgot to add that its 23000.00 gallons
    23k gal IG Vinyl Liner
    Sand Filter Pentair Pump VS
    Electric Heat Ft Wayne Indiana
    Built 2012

  6. Back To Top    #6

    In the Industry

    Donldson's Avatar
    Join Date
    Jun 2009
    Location
    NW Ohio
    Posts
    2,637

    Re: pool floc

    Well the pH and TA look fine for now, as does the CH. You will want to lower your pH slightly before SLAMing but let's cover that in a moment.

    You need to SLAM the pool to kill whatever is in there that is keeping you from holding your chlorine. This will eliminate anything that is eating phosphates so that level will not matter afterwards and you won't need to add phosphate remover.

    The first issue however is your CYA. It is virtually impossible to SLAM with your CYA that high, or to keep anything from reforming. To lower your you must do a water change, in your case about 60% by the looks of it. Does your auto chlorinator use pucks or liquid?
    JD - 28' Round Above Ground Pool, 17,000 Gallons. Dual speed Jacuzzi pump with cartridge filter. Dual speed 1 HP pump, Hayward S210T sand filter
    Pool School - PoolMath - HIGHLY Recommended Test Kits

  7. Back To Top    #7

    Re: pool floc

    my chlorinator uses pucks. How would you suggest draining that much water? I was told that it will really mess up my liner if I try to drain that all at once. Can I do it in batches of 20% at a time. Also have well water.
    23k gal IG Vinyl Liner
    Sand Filter Pentair Pump VS
    Electric Heat Ft Wayne Indiana
    Built 2012

  8. Back To Top    #8

    In the Industry

    Donldson's Avatar
    Join Date
    Jun 2009
    Location
    NW Ohio
    Posts
    2,637

    Re: pool floc

    You can do it in batches but they get less effective with each batch, so I would suggest doing as much as you can in two batches, then test your CYA again and we will see if it is reasonably lowered to start the SLAM. You should be able to switch your sand filter to Waste and it will drain. Do you have a main drain and a way to close off the skimmer? If so then you can use that for the whole time. If not then attach your vacuum and let it drain through that. Might as well vacuum while you are at too it if it needs it.

    Your pucks are the reason your CYA is where it is, continuing to use them will assure that this does happen again. You may want to look in to other options to chlorinate that will let you avoid having to drain again.
    JD - 28' Round Above Ground Pool, 17,000 Gallons. Dual speed Jacuzzi pump with cartridge filter. Dual speed 1 HP pump, Hayward S210T sand filter
    Pool School - PoolMath - HIGHLY Recommended Test Kits

  9. Back To Top    #9

    Join Date
    Jun 2012
    Location
    Howell, NJ
    Posts
    977

    Re: pool floc

    I have 2 comments on this: 1) Those look like pool store numbers. Do you have one of the recommended test kits, which are linked to in my signature? 2) Most CYA tests can't read above 100, so when they say 100, it could actually be much higher.
    John
    7 year old ~13,500 gal 24' AGP with 1.5 hp Proline pump, 150 sqft Pleatco cartridge, filled with well water with pH of about 4.5.
    Wanda the Whale pool vacuum, home made heater, Taylor K-2006
    Cloudy Pool? 1) Order test kit. 2) Follow SLAM
    New to TFPC? Read Pool School a few times, then post questions. PoolMath will help with chemical additions.

  10. Back To Top    #10

    Re: pool floc

    yeah, I can drain out of the waste part of the filter. I may just try to get a decent price on getting a tank full of water hauled in that way I can drain and fill at the same time. Funny the pool stores have told me time and time again that my CYA levels are not causing ANY of these problems.
    23k gal IG Vinyl Liner
    Sand Filter Pentair Pump VS
    Electric Heat Ft Wayne Indiana
    Built 2012

  11. Back To Top    #11

    Re: pool floc

    yes part are from pool store. I do my own chlorine and PH
    23k gal IG Vinyl Liner
    Sand Filter Pentair Pump VS
    Electric Heat Ft Wayne Indiana
    Built 2012

  12. Back To Top    #12

    Re: pool floc

    what are my alternitives to using the pucks in the auto chlorinator, I thought I had to use something???
    23k gal IG Vinyl Liner
    Sand Filter Pentair Pump VS
    Electric Heat Ft Wayne Indiana
    Built 2012

  13. Back To Top    #13

    Join Date
    Jun 2012
    Location
    Howell, NJ
    Posts
    977

    Re: pool floc

    CYA is the test pool stores get wrong the most, so your actual CYA may be lower or higher. If you want to clear up your pool, you should order one of the recommended test kits, which are linked to in my signature. Without them, it is hard to give good recommendations.
    No forms of solid chlorine are good. Some add calcium, some, like the pucks, add CYA. By far the best thing to use is plain unscented bleach or liquid chlorine. No unwanted side effects.
    John
    7 year old ~13,500 gal 24' AGP with 1.5 hp Proline pump, 150 sqft Pleatco cartridge, filled with well water with pH of about 4.5.
    Wanda the Whale pool vacuum, home made heater, Taylor K-2006
    Cloudy Pool? 1) Order test kit. 2) Follow SLAM
    New to TFPC? Read Pool School a few times, then post questions. PoolMath will help with chemical additions.

  14. Back To Top    #14

    In the Industry

    Donldson's Avatar
    Join Date
    Jun 2009
    Location
    NW Ohio
    Posts
    2,637

    Re: pool floc

    Quote Originally Posted by jodyliebing
    Funny the pool stores have told me time and time again that my CYA levels are not causing ANY of these problems.
    Well, let me ask you, if you have high CYA and your chlorine isn't up to the task of clearing algae, what do they tell you the problem is? Phosphates, right. And what is the most expensive chemical they sell there? Bingo, phosphate remover! That is quite a coincidence, don't you think

    Your alternatives are to chlorinate yourself with bleach, add an SWG, add a liquidator, add a peristaltic pump, etc. There are many many ways to chlorinate without using pucks, few people on this forum use them any more.

    JohnN is correct, a good test kit will help save you a lot of frustration in the future. Check the link in my signature.
    JD - 28' Round Above Ground Pool, 17,000 Gallons. Dual speed Jacuzzi pump with cartridge filter. Dual speed 1 HP pump, Hayward S210T sand filter
    Pool School - PoolMath - HIGHLY Recommended Test Kits

  15. Back To Top    #15
    techguy's Avatar
    Join Date
    Jul 2010
    Location
    Antelope, CA
    Posts
    2,687

    Re: pool floc

    Pool stores, in general, do not see high CYa are a problems since the majority of the Chlorine products they sell increase your CYA. This is simply that they do not understand the effect the CYA has on the Chlorine and it's ability to kill organics in your pool. When you have CYA over 100, the amount of FC killing organics in very low relative the total amount of chlorine in the pool.

    CYA and chlorine bind together and if all of the chlorine is bound, none of the chlorine is killing organics, its stabilized into doing "nothing".
    -- Guy --
    10K gallons in 21' Round 52 inch wall Aqualeader AG, Hayward Power Flow LX 1.5 HP pump motor, Hayward Perflex EC50AC DE filter w/Cellulose, Wide mouth skimmer, 2013 new Diver Dan (craigslist) to replace the faded old Hayward AquaBug. TF-100

  16. Back To Top    #16
    techguy's Avatar
    Join Date
    Jul 2010
    Location
    Antelope, CA
    Posts
    2,687

    Re: pool floc

    Short answetr to your question: Liquid Chlorine. This is also known as bleach.

    The items mentioned above... Liquidator and Peristaltic pump, pump liquid chlorine into your pool. The SWG creates chlorine by using salt and electricity.

    You may be asking.. chlorine, what about pucks/sticks and granules. These items all have chlorine in them and when you put them in the pool make liquid chlorine. The problem is almost all of them are "stabilized" into a solid form using a binding agent... CYA. The CYA collects in your pool until all of the pool is stabilized... and then it turns green, no matter how much stabilized chlorine you add.

    liquid chlorine or bleach are more effective and do not have the drawbacks of solid forms.
    -- Guy --
    10K gallons in 21' Round 52 inch wall Aqualeader AG, Hayward Power Flow LX 1.5 HP pump motor, Hayward Perflex EC50AC DE filter w/Cellulose, Wide mouth skimmer, 2013 new Diver Dan (craigslist) to replace the faded old Hayward AquaBug. TF-100

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •