Yeah, this topic was discussed before. IIRC, the enzymes that Walker uses may be of a type that lose effectiveness after a few hours. But I can't really say for sure. Enzymes don't really "die" per se, they are organic compounds but not living organisms.
The enzymes used by AIVS seem to still be effective after several months of siting next to my RCM cuz they're still cleaning my records.
The enzymes used by AIVS seem to still be effective after several months of siting next to my RCM cuz they're still cleaning my records.