T Trisomy21 Feeder Fish MFK Member Jun 15, 2010 50 0 0 Ontario Jun 23, 2011 #1 I'm wondering, do these really expire or does the company just say "shelf life of 1 year" or "4 years" etc to keep us buying more? edit: after reading around, I guess they do...weak, well I guess I'll just replace the important ones.
I'm wondering, do these really expire or does the company just say "shelf life of 1 year" or "4 years" etc to keep us buying more? edit: after reading around, I guess they do...weak, well I guess I'll just replace the important ones.
smitty03281964 Peacock Bass MFK Member May 5, 2010 3,650 397 122 Yeadon, Pennsylvania USA Jun 24, 2011 #2 I used my test kit that is 10 years old. It gave the same readings as a new unit. Now days they have expiration dates on bottles of water.
I used my test kit that is 10 years old. It gave the same readings as a new unit. Now days they have expiration dates on bottles of water.
