During the Chlorine Test, it says to use the "Chlorine Only" tube. Any particular reason that this is labelled so specific? I bought the magnetic stirrer kit and have been using the "Chlorine Only" tube with the magnetic stirrer. Is this OK?
TF-100..."Chlorine Only" Tube
- Thread starter wkusae31
- Start date
It's fine to use the magnetic stirrer in it. The "chlorine only" cylinder is there for a very benign reason. Over time, the FAS/DPD test will start to leave a dark residual on the sides of the cylinder. By using only one, you keep the other one clean for all the other tests.
It takes quite a while for the cylinder to darken. It doesn't affect the validity of the test but if it bugs you, it is readily cleaned with a 1:1 dilution of muriatic acid.
It takes quite a while for the cylinder to darken. It doesn't affect the validity of the test but if it bugs you, it is readily cleaned with a 1:1 dilution of muriatic acid.
If you're careful with the arrangement, you can get the speedstir, the cylinder that came with it, and extra stirbars all in the same case. That leaves one cylinder for FC, one for TA, one for CH, and the mixing bottle for CYA fits on the speedstir, too.
This is good to know that the tube can be cleaned. I didnt know! I figured I would have to buy a new tube! Thanks for the info Dave!
Saturn94
Bronze Supporter
- Mar 11, 2015
- 1,746
- Pool Size
- 20000
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- Chlorine
- Salt Water Generator
- SWG Type
- Hayward Aqua Rite (T-15)
Interesting. I've been using the tube that came with my Taylor k-1515 FAS DPD kit for about 10 years and the tube is still clear as new.