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Thread: Lowering TA

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    Lowering TA

    I have been following pool school and pool math on starting up my new pool. Everything is going great. I still have slightly cloudy water from my well but its improving with every vac and brush. I have been working on lowering TA. Add MA to 7.2 and aerate to 7.8 and repeat. Its a slow process but my numbers are going the right direction. 270 at start 230 now. I want to get borates in eventually. I was looking thru the pool store stuff they gave me and found pH minus. It has direction for lowering TA. I believe in the process I am doing. But why are the instruction so different? Wouldn't that just slam my pH thru the floor? It is sodium bisulfate. Or should I use it instead of buying more MA?
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    BoDarville's Avatar
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    Re: Lowering TA

    You are currently following the proper procedure for lowering TA by using MA. But before we go too far, how stable is your pH? Is there a reason why you want to add borates?
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    Re: Lowering TA

    We do it through a controls process of lowering pH and raising it through aeration. As with everything we do here it's very methodical and controlled. In this case precisely to prevent slamming down the pH. It's not the way to do it. You can use that up, but I strongly suggest sticking with 31% MA in the future to avoid adding Sulfates to your pool.

    You say you are cloudy, so what else has been going on to cause that? We're you doing a SLAM procedure?
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    Re: Lowering TA

    After reading pool school a bunch of times I just made it a goal for all the added benefits.
    New pool owner vinyl AG 1.5 HP filled with well water
    27' round 54" deep. Sand filter. 18500 gallons
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    Re: Lowering TA

    Quote Originally Posted by akaneut View Post
    After reading pool school a bunch of times I just made it a goal for all the added benefits.
    I would suggest going an entire season with a normal TFP well balanced pool before thinking about Borates. You really should learn the nuances of your pool before adding an additional optional dimension.
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    Re: Lowering TA

    Quote Originally Posted by tim5055 View Post
    I would suggest going an entire season with a normal TFP well balanced pool before thinking about Borates. You really should learn the nuances of your pool before adding an additional optional dimension.
    X 2

    They are completely optional, and Tim makes a very, very good suggestion IMO.
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    Re: Lowering TA

    No I believe its just from my well water and having a new setup. My filter is more like a strainer right now. I ordered a slime bag because I feel I can't catch all the debris and vac to waste and and adding more well water seems like a never ending process. I have passed a over night loss tests and I believe I'm doing it right. Any advice? I have a lot to learn.
    New pool owner vinyl AG 1.5 HP filled with well water
    27' round 54" deep. Sand filter. 18500 gallons
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    Re: Lowering TA

    The water is clearer this evening. I will vac and brush again. I may do another oclt tonight. Last nights # before adding anything.
    FC 3
    CC .5
    TA 230
    CH 325
    PH 7.2

    You guys are pros! I have already learned so much. Am I missing something?
    New pool owner vinyl AG 1.5 HP filled with well water
    27' round 54" deep. Sand filter. 18500 gallons
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    Re: Lowering TA

    Quote Originally Posted by akaneut View Post
    The water is clearer this evening. I will vac and brush again. I may do another oclt tonight. Last nights # before adding anything.
    FC 3
    CC .5
    TA 230
    CH 325
    PH 7.2

    You guys are pros! I have already learned so much. Am I missing something?
    I am a bit confused. Why is your FC so low and you don't have clear water?
    Did you pass all of the SLAM criteria? I know you said you passed OLCT. Part of passing the SLAM is also clear water.
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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    Re: Lowering TA

    I guess I'm confused. I just finished adding cya to get to 30. Am waiting week to test. Just assuming 30. I have been adding chlorine to get to 5. That reading was 24 hours after last chlorine addition. My water is clear with piles of brown dusty stuff on the floor. I have been vacuuming and brushing the sides because I thought it was from all the hard week water I used to fill. When I vacuum it seems to just get blown back in the pool making the pool cloudy. I wasn't wanting to vac to waste because I will have to add more hard water. Would a picture help? I'm sorry if I am confusing.
    New pool owner vinyl AG 1.5 HP filled with well water
    27' round 54" deep. Sand filter. 18500 gallons
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    Re: Lowering TA

    Yes, you are pretending it is already 30.

    - - - Updated - - -

    Your pool is probably vinyl correct? If so don't worry about CH.
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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    Re: Lowering TA

    I'm I wrong in doing that? I will test it in 5 days. I thought I was not suppose to check it until a week after I add because its going to be inaccurate.
    New pool owner vinyl AG 1.5 HP filled with well water
    27' round 54" deep. Sand filter. 18500 gallons
    TF-100

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    Re: Lowering TA

    You are correct you don't test for 1 week. However since you targeted 30 CYA we are going to assume it is working its way up to 30 and you add according to a level of CYA 30

    The reason you wait to check is that it will not show up on the test until a week later. It has to disolve and circulate to build up before you test.
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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    Re: Lowering TA

    That's what I thought I was doing. Cya of 30. Target Fc 4ppm. Being at 3ppm after 24 hours is too low? I'm confused.
    New pool owner vinyl AG 1.5 HP filled with well water
    27' round 54" deep. Sand filter. 18500 gallons
    TF-100

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    Re: Lowering TA

    I am not sure why you are confused. I read your question as why am I treating my CYA as 30 if I don't test it for a week. You have to keep your FC between 2 and 4. Don't let it drop below 2. When you are at 3 you should add to get it back to 4.

    Pool School - Chlorine / CYA Chart

    - - - Updated - - -

    I just went back and read your other posts. I was confused for a minute or two. Sorry about that.

    - - - Updated - - -

    Yes a picture would help. You can upload it to photobucket and then copy the IMG code and paste it here.
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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    Re: Lowering TA

    New pool owner vinyl AG 1.5 HP filled with well water
    27' round 54" deep. Sand filter. 18500 gallons
    TF-100

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    Re: Lowering TA

    That happens if I am sweeping or turn the pump off to clean the skimmer and turn it back on. Then it gets clear in 15 seconds or so.
    New pool owner vinyl AG 1.5 HP filled with well water
    27' round 54" deep. Sand filter. 18500 gallons
    TF-100

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    Re: Lowering TA

    You definitely need to SLAM!
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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    Re: Lowering TA

    You think its algae? I will slam it if you think it will help. We farm and have an old well that's very hard. Also lots of pollen now also. I just figured it was from the well.
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    New pool owner vinyl AG 1.5 HP filled with well water
    27' round 54" deep. Sand filter. 18500 gallons
    TF-100

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    Re: Lowering TA

    You can do an OLCT to see if you pass or not. If you don't pass you need to SLAM. Check out my slam process in my signature to see what I started with and ended up with.

    Pool School - Perform the Overnight FC Loss Test (OCLT)

    - - - Updated - - -

    Here is the link to

    Pool School - SLAM - Shock Level And Maintain

    - - - Updated - - -

    I am on a well to with lots of wind and dirt.


    Results after SLAM
    Lisa
    Intex AG vinyl 15' x 48" 4,300 gallons due to skimmer install, Krystal Clear SF pump combo 2800 GPH, Krystal Clear SWG, Pool Blaster Max vacuum, Hayward thru the wall skimmer, TF 100 test kit with speed stir, K 1766 Taylor salt test, My SLAM Process

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