Do pond additives expire?
We are planning to open our pond tomorrow, very excited to spruce it up after a long winter. We plan to take out the fish, drain all the water, power wash the liner, refill with fresh tap water. Last year i bought dechlorinator (that’s all we used last spring) and the fish seemed fine (who can tell??) they all survived.
This winter I found some water additives in the basement my mother bought about 20 years ago. I loathe wasting, the jugs are nearly full. The closest decent pond place is about 2hr round trip - ponds just aren’t as popular as they used to be.
TLDR: do these products expire? Would it be better to use these 20yr+ products or none at all? (I have new dechlorinator that i will def use, just don’t want to waste these).
u/Hustler1984 — 6 days ago