dirtyd61
Community Member
I mixed some ammonia chloride in RO water and circulated it to test a API kit I found in my storage that expired in 2020 vs a new one. Here’s the ammonia results 
. Don’t be tempted to use expired kits.
Left is new kit, right is 2020 exp.
. Don’t be tempted to use expired kits.Left is new kit, right is 2020 exp.
