Salt Test Reagent Longevity

Turbo1Ton

Gold Supporter
Dec 26, 2019
1,995
NE Oklahoma
Pool Size
14500
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
I'm sure this has been answered but my 10 minutes attempting different search terms did not net me the results I was hoping for.

The R-0630 and R-0718 reagents for the salinity test do not get used up in a single season. In fact, because of the low volume used, I am still on the original bottle of R-0630 that I received with my first TF100 in late '19/early '20. They are both expired as of now, and I am just curious if our chemistry folk can advise, do either of these reagents actually go bad?

I am about to order my refill kit from TFTestKits and will order new salinity test reagents as well, if I need to, but seeing as how the R-0718 is not inexpensive, if it doesn't actually go bad, I'll wait to purchase until needed.

--Jeff
 
Silver nitrate is very stable and does not go bad. I have been using the same salt reagents for years.
 
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