Hi Everyone! I have my TF-100 kit and practicing the art of testing my water - had a question regarding using the Speed Stir. As I do each test, should I drop in the reagents and then turn on the speed stir to mix, or can/should we have the speedstir on (mixing) while we're adding in the various reagents?
Speed Stir Usage question
- Thread starter tgrinchy
- Start date
You want to leave it on - especially for the tests that involve watching for a color change.
- May 23, 2015
- 25,727
- Pool Size
- 16000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Pentair Intellichlor IC-60
Measure out water sample size WITHOUT the magnetic stir bar.
Drop in magnetic stir bar and turn on speedstir.
Add reagents and titrate as directed by the test procedure.
Rinse out test tube and stir bar.
Drop in magnetic stir bar and turn on speedstir.
Add reagents and titrate as directed by the test procedure.
Rinse out test tube and stir bar.
Thanks everyone! Quick question on the TA test - when I did it, I saw the color change to red and back to clear - then eventually stayed red the more reagent I add.
Do I stop when I see it just change red or do I keep going to when it turns red and stays red?
Do I stop when I see it just change red or do I keep going to when it turns red and stays red?
ckendalls
Gold Supporter
- May 17, 2018
- 124
- Pool Size
- 11000
- Surface
- Plaster
- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Turbo Cell (T-CELL-5)
The latter. You read the number or drops it takes to stop changing color. It may change to lighter red first and with another drop go brighter red. Use that number. Also, with new kits and particularly in dryer weather, static electricity on the tip of the R-009 reagent can affect accuracy so you might try wiping the tip between drops to see if that affects results.