polyquat shelf life

[prh129]

Thanks guys.

I emailed Applied Biochemists (makers or Pooltrine products) as I used that brand last year and have been very happy with it. They said two years but didn't specify if that meant once it was opened or from the date it was made. Either way, I'm not concerned - I just wanted to make sure it would be good for awhile and that seems to be the case.

Peter

[CarlD]

I just keep it in a cool basement and it seems to last for years...the batch I have is several years old--it was on sale. I use a full quart at the end of the season to close.