Taylor Reagent Expiration

JPMorgan

Gold Supporter
May 22, 2018
847
Elmhurst, IL
Pool Size
60000
Surface
Plaster
Chlorine
Liquid Chlorine
I have half a bottle of R-0004 and almost a full bottle of R-0011L reagents that have 08/24 expiration dates. Do they need to be tossed or can I continue to use them? Thanks.
 
I have found the best indicator of bad reagents is when the results don't make sense...i.e. the results you get are higher than expected (reagents starting to weaken).

If you are still getting consistent results, then they are likely fine.

I have had, even though stored in cool, dark place, reagents go bad before expiration. Salt test being one of them.

My best practice is to order enough reagent for a year, and replace yearly to avoid any doubt.
 
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