How Long Will Home-Made 4dKH Stay Good?

[DGalt]

I made a stock 4dKH solution 3-4 months ago (can't remember exactly when), and I've been using that in my drop checker, changing it every couple of weeks. I'm just wondering how long I can keep using this solution without worrying about it being compromised.

It's stored in a brown, opaque bottle (cleaned out H2O2 bottle actually) in a dark, room temperature environment, if that makes a difference.

thanks

 

[coach_z]

probably for a very long time.
you can always test it with a KH test..