Also it says my target should be 6-8 FC with shock FC at 20. I don't get what shock FC is?
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Got my test kit and results! Now what?
- Thread starter Mkla216
- Start date
If you are raising the FC with bleach, then it will not raise the CYA. Shock level is the level you must maintain during the SLAM process to ensure you are killing the algae faster than it can grow. Have you read the SLAM process?
The shock fc is the level you need to maintain while slamming. Once slam completed, the target is what you want to keep all the time
I have read the SLAM process but it didn't explain how to measure shock FC. The chart says get my FC to 8 and get my shock FC to 20. Is there a difference between shock FC and FC? I guess I don't understand because those are two totally different numbers and idk how to measure the shock FC.
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Or is it saying that normally my FC should be 6-8 but during the SLAM process it needs to be at 20? I'm sorry I'm completely new to this.
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Ignore the target and focus on shock fc during the slam. If you have the Taylor or txt test kit you m azure fc and he same way, it just takes more drops for the sample to turn clear. Only after you meet all three criteria- 1 oclt < .5, 2 cc <.5, 3 3 water clear, can you let fc drop back to the target numbers
- Mar 24, 2014
- 2,455
- Pool Size
- 32000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool SJ-55
That is it
Don't worry, in a month you'll be surprised at how easy it all is.So I tested my CYA again today because it rained a lot here in OK so I just wanted to see if it went down. The cya is now at 60! What the heck can I do to lower it? Or do I need to lower it? I also added a gallon of bleach and waited an hour and my FC is now at 11.5! So that's good. How long should I wait to add more?
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If you are still SLAMming, your FC should be maintained at 24 for a CYA of 60, not at 11.5.
If you got a previous CYA result of 50 (there is no 45, always round up the 'in-between' numbers), then now get 60, it is most likely your testing method.
CYA is the toughest test to get down. Remember, you can always pour the sample back into to mixing bottle and perform the test a couple of more times with the same sample. Are you checking outdoors on a bright sunny day, back to the sun with the comparator tube at waist level?
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Yes I'm trying to get my FC up to 24 I just don't know how long to wait to put more bleach in. I just put the bleach in a few hours ago.
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If you are testing in an hour and the FC has dropped below shock level you should immediately bring it back up to shock level.
Remember, SLAM stands for Shock Level, And Maintain.
Maintain that shock level as best you can.
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Remember, SLAM stands for Shock Level, And Maintain.
Maintain that shock level as best you can.
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You want to pour enough bleach in there to *maintain* a FC level of 24, now that we think your cya is 60. Your step by steps will be:
1) test FC.....if less than 24..
2) Use PoolMath to tell you how much bleach to add to bring it back up to 24. Add that bleach and keep pump on.
3) One hour, or as soon as possible after an hour, Re-test FC..... if less than 24....
4) Use PoolMath to tell you how much bleach to add to bring it back up to 24. Add that bleach and keep pump on
5) repeat above steps as often as possible until pool is crystal clear, your CCs are less than 0.5 and then....
6) Attempt an Overnight Chlorine Loss Test (OCLT) and if your FC loss is 1 or less......you are DONE!!
1) test FC.....if less than 24..
2) Use PoolMath to tell you how much bleach to add to bring it back up to 24. Add that bleach and keep pump on.
3) One hour, or as soon as possible after an hour, Re-test FC..... if less than 24....
4) Use PoolMath to tell you how much bleach to add to bring it back up to 24. Add that bleach and keep pump on
5) repeat above steps as often as possible until pool is crystal clear, your CCs are less than 0.5 and then....
6) Attempt an Overnight Chlorine Loss Test (OCLT) and if your FC loss is 1 or less......you are DONE!!
I measure last night and my FC was at 17 I added the recommended amount of bleach for my pool per the pool calc and it shut up to 35. I did this again measure when I got home from work FC was 16 added recommended amount of bleach and it shot up to 30. What am I doing wrong. I can't get it right at 24.
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And it's nearly impossible for me to measure and add every hour I have to work. The only time I can check is in the morning, on my lunch, and when I get off of work.
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We all understand that life gets in the way. If you could at least add one more check/dose in the evening it would really help.
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Okay do you know why the pool calculator isn't accurately calculating how much bleach I should put in?
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I have been testing once in the morning around 730 once at lunch around 1 and three times at night.
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Either your pool volume is less than you think, or you are not selecting the correct strength bleach.
Can you tell us what you entered into pool math?
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Can you tell us what you entered into pool math?
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My pool is an 18 ft Coleman it's 6000 gallons. I entered 6000 at the top of the calculator. I put 16 as my currently FC and 24 as my target. Pool calc said to add 100oz of 6% bleach. I added it near the intake sloshed it around and waited an hour to test and it is at 30 now.
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First, let me say that you're doing really great. Please do keep asking questions as all of yours have been great! Yes, some were answered somewhere in pool school, but you're in the heat of battle right now, so it's totally okay to ask what you need to. Be sure to read all of pool school that applies to you when you have time, even if you read it before, it will all make more sense now.
As for your bleach additions: make sure you have the gallons set to 6,000 every time you use PoolMath. Make sure you test using the correct procedure when swirling and counting drops. Here is a video in case you are a visual learner. https://www.youtube.com/user/tf100testkit?feature=results_main
Here is a screen shot showing all the fields you would need to complete before pressing calculate to determine a bleach addition:
Be sure you see what % your bleach is on the bottle - could be anywhere from 6-12.5%. Be sure to put that in there.
You're not adding any other sources of chlorine like shock, packets, tablets, salt water generator, floater, sticks, powder, or anything like that, correct?
As for your bleach additions: make sure you have the gallons set to 6,000 every time you use PoolMath. Make sure you test using the correct procedure when swirling and counting drops. Here is a video in case you are a visual learner. https://www.youtube.com/user/tf100testkit?feature=results_main
Here is a screen shot showing all the fields you would need to complete before pressing calculate to determine a bleach addition:
Be sure you see what % your bleach is on the bottle - could be anywhere from 6-12.5%. Be sure to put that in there.
You're not adding any other sources of chlorine like shock, packets, tablets, salt water generator, floater, sticks, powder, or anything like that, correct?
