free chlorine testing question

[chem geek]

If you want to get something with more quantities for the FC tests you do most frequently, then you can either mix and match by buying the Taylor K-2006 and supplementing with extra DPD powder (R-0870) and FAS-DPD titrating drops (R-0871) or you can get something like the TF-100 here that has more of the reagents you use the most often (it's sort of like Ben's test kit he used to sell) including the CYA test reagent. A comparison of these test kits is in this post.

[pbotz2000]

Just orderded the TF-100xl.Was a good alternative to the other rec kits and the price was better. Hope i made a wise choice, but seemed like that was also a recommended kit.
Looking foward to accuratly test my water.

[chem geek]

The TF-100XL (which uses Taylor reagents) is useful if you are going to be shocking your pool and doing a lot of high FC measurements using the FAD-DPD chlorine test. Just keep in mind that some of the reagents don't last forever, but if you store them in a cool dark place then all should be good for at least 2 years (Taylor recommends changing them every year, but that's being conservative). The indicator dyes, such as used for the pH, TA and CH tests, and the FAS-DPD titrating reagent are the most sensitive; everything else will last for many years.

Taylor has a nice article on Recognizing a Compromised Reagent.

Richard