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Thread: update on Slam progress

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    Re: Slamming process

    Our in ground, vinyl lined pool is 20 X 40. (Volume 28,323gal.) The filter is sand. We use bromine rather than chlorine. Winter cover has been removed for about two weeks. Filter is running 24/7. Well water used to fill the pool I.e. bring thee water level up to skimmer level. Pool has been shocked on two occasions. It is very green, I believe because of oak pollen. Took water samples in to pool dealer two days running. Test results for day one: Total bromine--.1
    pH level-8, Total Alkalinity-31, Calcium hardness--135ppm, (copper, Iron,Manganese,Nitrates,Phosphates,saturation index--all 0) Total dissolved solids 222.
    Recommendatons: Add 21lbs of Alkalinity plus, added 19lbs

    Vacuumed pool and backflushed twice
    Took second sample to pool shop.
    Results: Total Bromine--.22, ph level--8.2, Total Alkalinity--62, Calcium Hardness--138. Only other change was saturation index .4
    Added 7.75 # Alkalinity plus, three bands shock
    Day three---Added 4oz clarifier vacuumed twice, backflushed, now more od green/sage green

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    Re: update on Slam progress

    Your pool is green from algae, not pollen, you will need to kill the algae before it will clear.. the pool store is not your friend, they are there to drain your wallet, alkalinity up is baking soda you can buy 4 pounds from walmart for $2.34 Arm Hammer Pure Baking Soda, 4 lb - Walmart.com
    while your there get the 10% pool shock/bleach from the pool aisle, way cheaper...

    Is there a certain reason you don't use chlorine?

    Here is a guide to using bromine but its mostly tailored to a spa but works exactly the same way How do I use Bromine in my spa (or pool)?)

    please start here reading, we can help.. Pool School - Pool School

    I hope this helps
    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
    links: pool school * Recommended-Levels * SLAM * CYA chart * Test kits * How To Post Pictures * Poolmath * OCLT ** Support your website if we helped you :) **

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    Re: update on Slam progress

    It sounds like I need to begin again by shocking the pool. How much bleach needs to be added to my 28,00 gal. pool? Does it matter that clarifier, bromine, and alkaline plus have been added in the past week?
    28 X40 in ground vinyl, 28,323 gal., sand filter, bromine user, Upper Peninsula of Michigan

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    Re: update on Slam progress

    we don't shock the pool here, it is a process called SLAM but you need a test kit to know what is going on with your water, the TF100 is the absolute best but the K-2006C is also a good test kit..

    We use poolmath to do the calculations for adding chlorine and everything else to the water http://www.troublefreepool.com/calc.html


    start here to get the hang of what is needed Pool School - Getting Started
    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
    links: pool school * Recommended-Levels * SLAM * CYA chart * Test kits * How To Post Pictures * Poolmath * OCLT ** Support your website if we helped you :) **

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    Re: update on Slam progress

    The water readings for the pool state: Total Bromine .22ppm
    PH level 8.2
    Total alkalinity 62ppm
    Totaldissolvedso,it's 222ppm
    I read the suggested material where in slamming 3/4 C bleach to 250-300 gal water.
    Pool is OD green and I can not see the bottom. Well water(hard water-iron and manganese) is used to refill/fill. The pool is surrounded by oaks. Water is not slimy or stinky.
    I should add bleach 70oz or 8.75 C for 28,000gal
    28 X40 in ground vinyl, 28,323 gal., sand filter, bromine user, Upper Peninsula of Michigan

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    Re: update on Slam progress

    We don't trust pool store numbers, sorry! You need a good test kit like everyone has been telling you
    32K gallon Plaster - 1hp Hayward 2 speed Super Pump - Hayward S200 Sand Filter - TF100XL
    Test Kits - Pool Math - Chlorine/CYA/Target/Slam Chart

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    Mod Squad JVTrain's Avatar
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    Re: update on Slam progress

    Bromine is not really part of the methods we teach here. Unfortunately, once you have a bromine pool, it's hard to switch to chlorine unless you completely (or nearly completely) drain your pool. Our SLAM procedure is tailored to chlorine pools so your results will vary if you attempt to follow a modified SLAM process. If you want some details and some reading to chew on, I would recommend reading this thread. New Pool Owner - Bromine and this sticky thread on how to use bromine (tailored for spas): How do I use Bromine in my spa (or pool)? and some more considerations in this thread: I use bromine

    Bromine is a bit off the deep end for most experts here and isn't generally recommended for an outdoor pool because it's more expensive and has no protection from UV degradation like CYA does for chlorine.
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
    40x20 Pool: 32K Gallons * Vinyl * Bleach Chlorination * Hayward S270T Sand Filter * Pentair SuperFlo 1 HP * Teledyne/Laars Heater * AquaVac Tigershark * TF-100 w/ SpeedStir
    Isolated Spa - 345 Gallons

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    Re: update on Slam progress

    I have retested pool using Aquacheck strips. Today's results Hardness--6-22ppm. Bromine--0. Alkalinity--80-120ppm. pH 7.2? I have cheesecloth on skimmer, removing oak pollen. Pool is yellowish green. I have been vacuuming, back flushing, skimming for four days. I ave added six bags of shock in that time. Should I resort to an algaecide before attempting to add more shock? Becoming so frustrated. Please help!
    28 X40 in ground vinyl, 28,323 gal., sand filter, bromine user, Upper Peninsula of Michigan

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    Mod Squad JVTrain's Avatar
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    Re: update on Slam progress

    Without a test kit that can measure bromine (the FAS-DPD test) you're flying blind. What kind of shock are you using? You'd be best served using liquid chlorine (aka bleach) rather than powdered shocks that are more expensive and have other chemicals you don't need in your pool. Have you read anything in Pool School?
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
    40x20 Pool: 32K Gallons * Vinyl * Bleach Chlorination * Hayward S270T Sand Filter * Pentair SuperFlo 1 HP * Teledyne/Laars Heater * AquaVac Tigershark * TF-100 w/ SpeedStir
    Isolated Spa - 345 Gallons

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    Re: update on Slam progress

    Yes, I have read several of the articles. Algae, slam, Floc, etc I have used one pound bags of shock for bromine pool. I need to get a better test kit(Taylor). I plan to vacuum, skim, backwash, change cheesecloth on skimmer. Then get bleach to use as shock for pool. Also try to get a kit which measures bromine more accurately. As I said the test strips said 0 Bromine, pH 7.2-7.6. I know the problem is algae and oak pollen. How much bleach do I use?
    28 X40 in ground vinyl, 28,323 gal., sand filter, bromine user, Upper Peninsula of Michigan

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    Re: update on Slam progress

    Quote Originally Posted by Sage UP View Post
    I have retested pool using Aquacheck strips. Today's results Hardness--6-22ppm. Bromine--0. Alkalinity--80-120ppm. pH 7.2? I have cheesecloth on skimmer, removing oak pollen. Pool is yellowish green. I have been vacuuming, back flushing, skimming for four days. I ave added six bags of shock in that time. Should I resort to an algaecide before attempting to add more shock? Becoming so frustrated. Please help!
    Just to confirm, when are you receiving your test kit, without it you have really not started the SLAM.. please do not add algaecide, it just makes things worse and please do not use anything with copper in it..
    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
    links: pool school * Recommended-Levels * SLAM * CYA chart * Test kits * How To Post Pictures * Poolmath * OCLT ** Support your website if we helped you :) **

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    Re: update on Slam progress

    Quote Originally Posted by Sage UP View Post
    Yes, I have read several of the articles. Algae, slam, Floc, etc I have used one pound bags of shock for bromine pool. I need to get a better test kit(Taylor). I plan to vacuum, skim, backwash, change cheesecloth on skimmer. Then get bleach to use as shock for pool. Also try to get a kit which measures bromine more accurately. As I said the test strips said 0 Bromine, pH 7.2-7.6. I know the problem is algae and oak pollen. How much bleach do I use?
    The FAS-DPD test for free chlorine (FC) and combined chlorine (CC) also tests accurately for bromine. That test is included with the TF-100 from tftestkits.net (see my signature) and the K-2006. When using a 10 mL sample, the test will measure FC/CC at 0.5 ppm per drop for chlorine and 1.25 ppm per drop for bromine. Same reagents, same test.
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
    40x20 Pool: 32K Gallons * Vinyl * Bleach Chlorination * Hayward S270T Sand Filter * Pentair SuperFlo 1 HP * Teledyne/Laars Heater * AquaVac Tigershark * TF-100 w/ SpeedStir
    Isolated Spa - 345 Gallons

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    Re: update on Slam progress

    My test kit is here and I'll run it after I vacuum, back flush, and skim in the a.m. I added 8 gal. Of bleach to the pool at two-four hour intervals throughout the day. Last batch added about 8:00 p.m. EST. No algaecide or anything else added.
    28 X40 in ground vinyl, 28,323 gal., sand filter, bromine user, Upper Peninsula of Michigan

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    Re: update on Slam progress

    Nice

    Let us know the numbers from the test and lets see what we are working with
    Pool: Intex 16x32 15000 gal, 2 speed 340042, Pentair CC320 Filter, CircuPool SJ45 Salt System, Intermatic PE653RC; Hot Tub: 650 Gal SWG Megachlor
    links: pool school * Recommended-Levels * SLAM * CYA chart * Test kits * How To Post Pictures * Poolmath * OCLT ** Support your website if we helped you :) **

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    Re: update on Slam progress

    Test kit HTH 6 way
    Results as of 11:00 this a.m. EST after 8 gallons bleach yesterday.
    chlorine .5. Bromine 1. PH 7.5? Cya supposed to turn cloudy, remained clear. Alkalinity first solution supposed to turn green, became Mediterranean blue. When titrant drops added, supposed to turn red. After 15 drops, light gold.
    I assume more bleach is in order! How much? Anything else?
    28 X40 in ground vinyl, 28,323 gal., sand filter, bromine user, Upper Peninsula of Michigan

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    Re: update on Slam progress

    Test kit today(6/24) gives total chlorine as 5. PH as 7.2-7.5. Still murky, but not slimy or smelly other than bleach. I added clarifier (diluted 16 oz.). Added more well water last night. 10:00 p.m. EST).
    More suggestions, advice?
    28 X40 in ground vinyl, 28,323 gal., sand filter, bromine user, Upper Peninsula of Michigan

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    Mod Squad JVTrain's Avatar
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    Re: update on Slam progress

    We're running under the assumption that this is a bromine pool so you should be testing 0 for CYA and don't need to test for it.

    On the TA test, depending on FC levels, the color change can be different. See here: Pool School - Total Alkalinity

    Rinse the sample tube with pool water.
    Fill the sample tube with pool water to the 25 ml mark. The top of the sample will be curved. This curve is called a meniscus. The bottom of the meniscus should be level with the 25 ml mark.
    Add 2 drops of R-0007 and swirl to mix.
    Add 5 drops of R-0008 and swirl to mix. The solution should turn green or blue. If the sample turns red, pink, or yellow, you are done, your TA is zero, and your PH is very very low (4.5 or lower).
    Counting the number of drops as you go, add R-0009 one drop at a time, swirling to mix after each drop.
    Continue adding drops until the color changes to something more or less red, pink, yellow, or clear. The sample may switch between green, blue, and gray while you are adding drops. That is not the color change you are waiting for.
    Continue adding drops as long as the color continues changing. The final drop, that does not change the color any further, does not count.
    Multiply the number of drops by 10 to get your TA level. Remember that the final drop, which didn't cause any further color change, doesn't count.
    Dispose of the sample safely. It is best to pour it down the drain with the water running. Do not add it back to the pool.
    Rinse the sample tube with tap water and store for next time.


    - - - Updated - - -

    This is a non-standard SLAM procedure because it is a bromine pool so the only advice I can give is to keep targeting 10 ppm FC with your dosing and proceed until you're not seeing CCs above 0.5 ppm, you pass an OCLT and the water is completely clear.
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
    40x20 Pool: 32K Gallons * Vinyl * Bleach Chlorination * Hayward S270T Sand Filter * Pentair SuperFlo 1 HP * Teledyne/Laars Heater * AquaVac Tigershark * TF-100 w/ SpeedStir
    Isolated Spa - 345 Gallons

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    Re: update on Slam progress

    As I stated the cc is 5ppm Alkalinity test yesterday was golden after 14 drops. Haven't put any bromine in pool.
    28 X40 in ground vinyl, 28,323 gal., sand filter, bromine user, Upper Peninsula of Michigan

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    Mod Squad JVTrain's Avatar
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    Re: update on Slam progress

    Once a bromine pool... always a bromine pool. What your bleach is doing right now is reactivating bromide ions that are in your pool and converting them to bromine. Assuming you still have bromide ions in your pool left over from previously using bromine tablets. You must have residual bromide in your pool unless you have completely drained it or have not used any source of bromine tablets for quite some time. Your FAS-DPD test tests for either of these two. If you get a result of 10 drops on a 10 mL sample, if you had a chlorine pool that would be 5 ppm FC. The same result in a bromine pool is ~12.5 ppm bromine.

    What I've been advising you to do is raise your tested FC level up to 10 ppm and maintain until the pool passes the SLAM criteria. You're actually raising your bromine level to about 25 ppm in doing this.

    Your Alkalinity is 140 ppm based on that result.
    Joel - TFP Moderator - Minnesota - **Become a TFP Supporter!** Helpful Links: ABCs of Pool Water Chemistry - SLAM Procedure - Chlorine/CYA Chart
    40x20 Pool: 32K Gallons * Vinyl * Bleach Chlorination * Hayward S270T Sand Filter * Pentair SuperFlo 1 HP * Teledyne/Laars Heater * AquaVac Tigershark * TF-100 w/ SpeedStir
    Isolated Spa - 345 Gallons

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    Re: update on Slam progress

    On Friday(25) I added 7.5 # of super shock. Cleaned out filter, washed skimmer sock. Did not backwash. Numbers: CL 7 pH 8.3. Total alkalinity 69 ppm
    Sat. vacuumed in the a.m., skimmed. Cleaned out filter, skimmer. No back wash. Pool murky, but lightening up.
    Sun. Pool clearer. After skimming, vacuuming, skimming in a.m. Cleaned out skimmer, pool filter, did not back flush. Could see bottom on shallow end and around perimeter of deep, but can not see main drain. Skimmed again in p.m. Turned off filter allowing settling?
    June 27--noon Tested. Numbers CL 5 Br. 10 pH 7.35
    performed Total Alkalinity test
    When adding alkalinity indicator, water
    28 X40 in ground vinyl, 28,323 gal., sand filter, bromine user, Upper Peninsula of Michigan

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