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Thread: Almost ready to start SLAM, I think?

  1. Back To Top    #1

    Join Date
    Mar 2015
    Location
    Troy, AL
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    9

    Almost ready to start SLAM, I think?

    Just a little background before I ask questions...

    This will be our 3rd summer with our pool(Santa Clause built it the week after Christmas 2012). The first summer was perfect except for one week of heavy rain and us being out of town in July. I followed the pool store's suggestions and it was all better within 3-4 days of shock, brushing, and vacuuming to waste. The pool stayed clear the rest of the summer and winter with only a little MA and salt added. The second summer started off fine but by the end was a total headache of going to the pool store and buying shock and MA on a regular basis and brushing and vacuuming to waste and chemicals and vacuuming to waste refilling the pool more pool stuff, the pool store telling me my SWG had to be broken because I never had FC unless I just added shock. I finally gave up and didn't do anything this winter. I discovered TFP and I am trying to get my pool in order before it gets hot so that it will be pretty and simply easier to maintain! I started off with going to the pool store (before I did a lot of reading on this site) to get my water tested(I didn't have a good test kit yet) and these were the results:

    02/27/15
    FC 0
    CC 0
    pH 7.8
    CH 160
    TA 100
    CYA 25
    Salt 2000

    So I bought salt(added 5 bags), baking soda (added 12lbs, 6 at a time), calcium stuff??(added 10lbs), super shock-it 73(added this first 4lbs), they told be to wait on the CYA??? I did all of this over the course of a week. I started reading more on this site. I went back to the pool store(which is really a local hardware store in town that tests pool water, really nice people but I don't think they own a pool so they just tell me what the computer tells them to tell me) and these were the test results:

    03/05/2015
    FC 3.64
    CC 0
    pH 7.9
    CH 230
    TA 130
    CYA 25
    Salt 2600

    My pool still had a little green to it so they sold me 2 1lb bags of dichlor and that would take care of the algae and add just enough CYA to be good. They told me to also add a quart of MA. OK I have been continuously reading on TFP and realized that was not nearly enough CYA for a salt water pool that is in direct sunlight almost all day during the summer. So I went to Lowes and bought a 4lb bottle of CYA and added it in a sock to my skimmer. At this point I am still regularly brushing and vacuuming to waste (it just seems to get the algae out better than making the filter work so hard and I had to of course keep adding water to my pool). I also ordered a real test kit T 2006K on March 13! But because I am still learning and don't have my own test kit I went back to the pool store again.....

    03/13/2015 (my last time testing at the store)
    FC 6.05
    CC 0
    pH 7.3
    CH 180
    TA 130
    CYA 55
    Salt 2600

    They tell me everything is perfect. But I asked doesn't my CYA need to be a little higher since I have a Salt water pool? She says nooo it is perfect just like it is(I now know and understand why and wish I had my information from last summer because I am sure this is where my problems all started, because I was vacuuming all of my CYA out it wouldn't hold chlorine!).

    Now the good news I got my T 2006K test kit yesterday and went home and tested the pool last night and this morning(just trying to get the hang of it!) These are my results:

    03/18/2015 @ 8pm
    FC 9
    CC 0
    pH 8+ it took 3 drops to turn the color back
    CH 200
    TA 125
    CYA 85
    Salt I didn't test, should be ok since the indicator light shows it as fine on SWG(I do have tests for this just didn't do it)



    03/19/2015 @7am
    FC 9
    CC 0
    pH 8+ it took 14 drops to turn the color back(what is going on????)
    CH 200
    TA 175
    CYA 85
    Salt I didn't test, should be ok since the indicator light shows it as fine on SWG(I do have tests for this just didn't do it)

    So now that you have read my pool's life story.... I think I need to SLAM my pool. But I have one problem I will be out of town all day Friday and Saturday and will return Sunday afternoon and then I will be able to begin the SLAM process on Sunday afternoon. So I started off this morning by adding 1 gallon of MA to my pool to bring the pH down.

    Should I add a gallon of bleach tonight and in the morning before I leave and to hopefully slow an outbreak while I am gone?
    Should I try to add some CYA while I am gone too, so that my shock level won't have to be so high?

    Thanks for any and all help!

    I am loving this site and I hope I am on my way to a easier to maintain pool this summer!
    21,600 gal, IG Vinyl, sand filter, Pentair Intellichlor SWG

  2. Back To Top    #2
    Patrick_B's Avatar
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    Jun 2011
    Location
    Midland TX
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    Re: Almost ready to start SLAM, I think?

    Add enough to bring it to at least SLAM Level before you leave. That will help a little.

    And no, no more Cya right now.

    Stay away from the Baking Soda. Your TA is already quite high! You'll want to work that down this summer and more so because you're running a salt cell. That's what's going on with your pH too. High TA will cause upswing more rapidly. NO MORE baking soda!

    I think a review of pool school would help as well. Please review it soon.
    TFP Moderator
    Essential Links:
    ABC's Of Pool Chemistry, Test Kits, SLAM Your Pool
    28K Gal IG FreeForm, CLI Quartz, Pentair 36"SF & VS Pump, Dolphin M5, Rheem

  3. Back To Top    #3

    Join Date
    Mar 2015
    Location
    Troy, AL
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    Re: Almost ready to start SLAM, I think?

    Ok before I left for the weekend I increased my FC to 40.5(a little higher than I was aiming for) on Thursday night and turned off my SWG. I tested my FC level on Friday morning and I had not lost any FC. Yay! These were the test results I got tonight

    FC 20.5
    CC 0
    PH 8+ maybe 8.2
    TA 130
    CH 150
    CYA 80

    I just need to know should I add acid or should I wait until the FC level has come down before worrying about it? From what I have read I think I should wait until the test shows FC below 10 to trust my test results. I just want to be sure I am doing this method correct. Thanks for your help! I think I am getting the hang of TFPM and this pool should be a lot easier to enjoy this year!
    21,600 gal, IG Vinyl, sand filter, Pentair Intellichlor SWG

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    Mod Squad woodyp's Avatar
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    Apr 2010
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    East Texas
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    Re: Almost ready to start SLAM, I think?

    No acid until FC <10.
    16x32x52" Steel Cornelius Miramar AGP Vinyl liner 13,100 gal. Buried 2 ft.
    2 Speed Hayward Power-Flo Matrix 85 g.p.m. 22" 250lb. sand filter hard plumbed
    Pool Rover Jr., Pool Blaster Max, Diver Dave TF100 Test Kit/Speed Stir
    Margaritaville Frozen Concoction Maker, Liqour Chiller, & Drink Mixer & Party Tub----Collect 'um all!

  5. Back To Top    #5
    Mod Squad tim5055's Avatar
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    May 2014
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    Columbia, SC
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    8,497

    Re: Almost ready to start SLAM, I think?

    You are correct, the pH test is going to be wrong with the FC above 10 - in that it will read high

    How does the water look? Clear?

    You passed the OCLT before you left and CC is 0, so a clear pool is all you need.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

  6. Back To Top    #6

    Join Date
    Mar 2015
    Location
    Troy, AL
    Posts
    9

    Re: Almost ready to start SLAM, I think?

    Yes I passed it before I left! I thought the pool was good but just wanted to be absolutely sure so I can avoid the headache I had with the pool last year! It looks super clear now and I want to keep it that way FOREVER! Thanks so much to this website and all I have learned I think I am on the right path! Should I continue to let my SWG run while I am waiting for the FC to slowly drop to normal levels? I did turn it back on before I left for the weekend when my overnight test showed I was clear of algae? I want to work on what the right amount of time and percent I should be running my pump and SWG everyday next!
    21,600 gal, IG Vinyl, sand filter, Pentair Intellichlor SWG

  7. Back To Top    #7
    Mod Squad tim5055's Avatar
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    May 2014
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    Columbia, SC
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    Re: Almost ready to start SLAM, I think?

    I'd leave it off to let the FC come down to your goal.
    TFP Moderator 39 X 18 23,000(ish) freeform gunite; built 2007ish; Pentair Triton II TR100 600lb Sand filter; 2 HP Pentair pump with 2.2 HP AO Smith single speed motor; 2 skimmers, 1 main drain, 4 returns w/waterfall, Stenner 45MHP2 3GPD running@ 60% - 15 gal Tank; heated by the sun CYA 200+ when I started - 50 now. Dolphin Supreme M5 Pool Cleaner. Hot Springs SX Spa, 285 gallon

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