We had our first pool party yesterday with a lot of kids, so I decided to try out my new TF-100 kit. My results: Quick results were Cl=2 (that was hard for me to tell for sure) and pH=7.5....FC=2, CC=.5, TA=130 or 140, CH - started changing to purple at 13 drops was blue after 16 drops...not sure when to stop testing. What do I need to add to my pool?!
First use of TF-100 Kit
- Thread starter familytime
- Start date
- Jun 7, 2017
- 10,036
- Pool Size
- 29000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Jandy Aquapure 1400
I filled the test tube to the top. It was faint, but I could still barely see the dot
gingrbredman
Gold Supporter
- Jun 10, 2020
- 732
- Pool Size
- 11200
- Surface
- Fiberglass
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-40
It would appear you have little, or at least less than 20 ppm of CYA so you need to get that in there. Check the "effects of adding" section of the Pool Math app and see how much you need to add to get to at least 50 for now. I usually add it in stages, and test a couple days apart. Sometimes the CYA takes a day to fully dissolve and circulate through the system so adding it in stages prevents from over shooting the mark.
- Jun 7, 2017
- 10,036
- Pool Size
- 29000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Jandy Aquapure 1400
Have you added CYA (cyanuric acid) to the pool? The PoolMath app or the below will tell you what you need to be within specs for TFP recommended chemical levels.
PoolMath
Discover the calculator behind the perfect pool, PoolMath. Dealing with pools has allowed TFP to become the original authors of the best calculator on the net.
www.troublefreepool.com
And this.....
What Are My Ideal Pool Levels?
Use our tool to find ideal chemical levels for any swimming pool. Check TFP recommended levels on pH, free chlorine, cyanuric acid, and more.
www.troublefreepool.com
CTFocusST
Well-known member
- Jul 4, 2019
- 242
- Pool Size
- 13500
- Surface
- Vinyl
- Chlorine
- Salt Water Generator
- SWG Type
- CircuPool RJ-45 Plus
Seconding the recommendation to add cya in stages. The only way to lower cya is to exchange water so better to slowly approach needed level
On all tests, you keep going with drops until there is no further color change. Don't count the final drop that made no change. If calcium turned blue on drop 16, and not 17, you multiply 16 x 25 for 400 calcium.