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Thread: Want to get the chemicals right ...

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  1. #1
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    Default Re: Want to get the chemicals right ...

    Sorry, I must not have been clear what I was asking ... I wanted to know if we should add chlorine slowly or full shock strength in one shot we went for the one shot and was probably not the right approach ...
    Values were:
    FC: 0 ppm
    TC: 1.1 ppm
    Ph 7.9
    TA: 309
    CYA: 5 ppm
    Hardness: 230ppm
    Metals: 0
    TDS: 500ppm
    We added 4 quarts GLB Algaemycin 2000, brought the ph down to 7.2, added 8 lbs of stabilizer through the skimmer then 3 hours later poured in 8 gallons of liquid chlorine. Next morning pool was clear but the color of tea (brown). Now, chlorine (free and total) is higher than my ability to quantify with my test strips. Ph is 7.0. Added 1 quart clarifier and 3 qts metal magnet. Now the pool is green, somewhat cloudy, holding chlorine, but making me want to throw in the towel. Anybody want to weigh in on what's next?

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    Default Re: Want to get the chemicals right ...

    Quote Originally Posted by Debits26 View Post
    We added 4 quarts GLB Algaemycin 2000, brought the ph down to 7.2, added 8 lbs of stabilizer through the skimmer then 3 hours later poured in 8 gallons of liquid chlorine. Next morning pool was clear but the color of tea (brown). Now, chlorine (free and total) is higher than my ability to quantify with my test strips. Ph is 7.0. Added 1 quart clarifier and 3 qts metal magnet. Now the pool is green, somewhat cloudy, holding chlorine, but making me want to throw in the towel. Anybody want to weigh in on what's next?
    Sounds like you may have iron, and that that's what your dealer considered as a possibility . . . but he loaded you up with algaecide too.

    If it was brown, but is now green and CLEAR, there's a fair chance you've got rust on the pool bottom. Color wise, blue water + orange rust creates an apparent green tint. So . . . vacuum the pool. If nothing changes, toss a couple of vitamin C tabs on the bottom, and see if it changes color -- if there are iron stains, the tabs will clear a small area.

    Meanwhile:

    + It's much easier to answer your questions, when we have the details about your pool in one place. We often 'waste' the first few posts back and forth collecting information. So, please complete our new Pool Chart form -- it takes about 30 seconds, but will save much more than that.
    Pool Chart Entry Form
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    + Pool tests for metals aren't always reliable, for a variety of reasons. If there's a chance you may hve iron or other metals in the water you fill your pool with, using a bucket test can verify the problem: http://www.poolforum.com/pf2/showthread.php?16946

  3. #3
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    Default Re: Want to get the chemicals right ...

    I added my pool info to the pool chart. Our well water is FULL of iron. We try to filter out as much as possible when we add water using a Metal Trap on the hose and a separate little submersible pump to send the water through an under sink filter contraption.
    Last edited by PoolDoc; 07-09-2012 at 08:52 AM.
    43K concrete L; 2.5HP Pentair; sand filter; PF:2.7; iron contaminated well water

    Shallow: 20' + deep:20'xShallow:40' + deep:16' L' 50K gal IG pool; Trichlor feeder; Jacuzzi sand filter; Pentair whisper jet 2.5 hp pump; 24/7hrs; Aquachem strips; well; summer: ; winter: ; ; PF:2.4

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    Default Re: Want to get the chemicals right ...

    I looked at your chart; that's a big pool; small errors in chemistry are going to cost you a LOT of money.

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    Default Re: Want to get the chemicals right ...

    I had to dig some more, to get the info I needed. Do these things:

    1. Go to the Walmart in Woodstock, and get the HTH 6-way drops kit -- it shows to be currently in stock.

    2. Go to the Sams Club in Crystal Lake and get their PoolBrand Chlorinating Granules - 50 lbs. for ~$115
    If you aren't a member, call and see if you can get a guest pass.

    3. Go to Amazon, and order a K2006 test kit (yes, you will need that, too)
    Taylor K2006A (3/4 oz bottles) @ Amazon
    Taylor K2006C (2 oz bottles) @ Amazon
    4. Go to the Lake in the Hills Lowes, and get their "Crown" muriatic acid -- 6 gallons to start. While you're there, get some nitrile gloves (blue) and inexpensive safety glasses, if you don't have any. Do NOT get any of the 'safer' muriatic acid; DO read the muriatic acid sticky in my signature BEFORE using the muriatic.

    5. As soon as you can conveniently do so, order 50 or 100 lbs of calcium hypochlorite from Amazon. Chlorinating with this will help remove iron, but you'll have to use the dichlor first, to get your stabilizer up.

    6. See if you can get a small amount of DE powder from your pool store, or Lowes or Walmart. Add 2 - 4 cups directly to the skimmer, and then watch to see if the powder shoots back into the pool. If it does, your filter needs repair. If you can, open your filter ANYHOW, and make sure it's full with sand. If not, get enough filter sand from your pool store, or possibly Lowes, to fill it.

    7. Make a dated list, as accurately as possible, of ALL the chemicals you've used in the last months, with EXACT product name, quantities and dates. Also include an inventory of what chemicals you have on hand.

    8. Post that list AND test results from the HTH kit ASAP.

    9. Begin dosing with the dichlor (Sams) ASAP. Start with 1 cup doses added directly to the pool - watch to see if there is any color change in the water. If there is not, gradually add larger and larger doses over an hour's interval, till you've added about 12 cups (~4 ppm of chlorine). If all goes well, you'll should begin adding 6 cups each AM and 8 cups each PM, till your pool begins holding 2 - 4 ppm of chlorine throughout the day.

    10. Once you have established a constant chlorine level, BRUSH the pool completely. Then, add a 6 - 12 cup dose of dichlor after brushing.

    11. Wait at least 12 hours, and then VACUUM the pool completely. Add at least a 6 cup dose of dichlor when you do.

    12. Do NOT let your chlorine level go below 1 ppm at ANY time; it should be over 4 ppm EVERY night, AND first thing in the AM.

    13. Meanwhile, begin adding 1 gallon muriatic acid doses till your pH reaches 7.4 or a little lower. Hold it at that level.

    14. Tell me the EXACT model and make of your sand filter.

    15. Verify your pool chart info: you have no pool heater and no other pool equipment except your feeder.

  6. #6
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    Default Re: Want to get the chemicals right ...

    Couple of questions:
    1. We have 8 lbs of stabilizer on hand. Should we use that and liquid chlorine instead of the Dichlor?
    2. We have 11 bags of Sam's pool shock on hand. Is that the same as the granules?
    3. Should we be keeping our inline chlorinator with 3 in trichlor tabs while we are getting in balance?

    I appreciate your help very much!!
    43K concrete L; 2.5HP Pentair; sand filter; PF:2.7; iron contaminated well water

    Shallow: 20' + deep:20'xShallow:40' + deep:16' L' 50K gal IG pool; Trichlor feeder; Jacuzzi sand filter; Pentair whisper jet 2.5 hp pump; 24/7hrs; Aquachem strips; well; summer: ; winter: ; ; PF:2.4

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    Default Re: Want to get the chemicals right ...

    Quote Originally Posted by Debits26 View Post
    We have 8 lbs of stabilizer on hand. Should we use that and liquid chlorine instead of the Dichlor?
    That would be fine, but with a cartridge filter, it's rather hard to dissolve. Put it in some old athletic socks, and hang them in front of your returns.

    We have 11 bags of Sam's pool shock on hand. Is that the same as the granules?
    If it's "PoolBrand" bagged shock, yes it is, and it's fine to use.

    Should we be keeping our inline chlorinator with 3 in trichlor tabs while we are getting in balance?
    Don't use the chlorinator. If you still have tabs, put them in the skimmer. In your chlorinator, they tend to result in pools stains. But, in the skimmer, they tend to result in staining your cartridge . . . which is a GOOD thing. Just make sure that no OTHER chemicals (including bleach, but excepting borax) come into direct contact with the tabs.

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