K-1766 shelf life and disposal


Bronze Supporter
Apr 4, 2014
Tampa, Florida
I bought the kit (from TFTestkits) K-1766 2 years ago.. hardly used it.. recently did use and it seems fine.
I had to re-order the primary refills… so to meet the $100 free shipping and being not sure about shelf life I ordered the refills for k-1766.
Now I ponder: I have used maybe 1% of these “old” chemicals can I keep using them instead of disposing? If not how best to dispose? I live on a lake….
Do these really expire? Can I just keep using the old ones? How will I know they expired?


Gold Supporter
TFP Guide
Jul 21, 2013
Northern NJ
Pool Size
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
The silver nitrate reagent in the K-1766 is very stable and will last for years. Just keep on using what you have.
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