Question about Clorox Pool & Spa Chlorine Tabs

beachinmoney

Bronze Supporter
Jun 13, 2013
195
Buckeye, AZ
I think I know the answer to above but I can't find anywhere that has the chemicals or active ingredients on it. One more question. What out of my Taylor test kit would be bad by now. I bought it 7/2013. The K2006. Thanks in advance.
 

chem geek

TFP Expert
LifeTime Supporter
Mar 28, 2007
12,083
San Rafael, CA USA
I think I know the answer to above but I can't find anywhere that has the chemicals or active ingredients on it. One more question. What out of my Taylor test kit would be bad by now. I bought it 7/2013. The K2006. Thanks in advance.
See Recognizing a Compromised Reagent from the Taylor website. To be on the safe side, you should replace any of the organic dyes most frequently (R-0870 DPD powder, R-0004 pH indicator, R-0008 TA indicator, R-0011L CH indicator) and the FAS-DPD reagent (R-0871). There are some reagents with a reasonably long shelf-life, but you could replace every few years (R-0003 potassium iodide, R-0007 thiosulfate, R-0013 melamine). Everything else should last for many, many years since they are just acids and bases (R-0005 acid, R-0006 base, R-0009 acid, R-0010 base).
 

chem geek

TFP Expert
LifeTime Supporter
Mar 28, 2007
12,083
San Rafael, CA USA
As noted in John's link, the Trichlor tabs contain some boron salt so will slowly increase borates over time. It's <2% so if I assume it is sodium tetraborate pentahydrate, then for every 10 ppm FC added by this product, it also increases borates by less than 10*(4*10.811)/(0.9405*232.41) = 2.0 ppm (in ppm Boron units).

The main problem is with the 3-8% of "Trade secret 002". Based on this thread this appears to be the same as Aqua-Chem Plus tabs and based on this MSDS this seems to be the same as BioGuard Silk Sticks (and now we know that "Trade Secret 141" is a boron chemical), but we don't know what this chemical is that they are adding. They claim it softens the water and prevents scaling so perhaps it is a metal sequestrant.