I bought a tftestkit in 09, this is the third season I have had it. I was testing my water today and it seems like the chemicals are not reacting they way I remember they did last year. Do any of the chemicals in this kit go stale after a couple years?
R-870, R-871 and R-013 are the one I'm questioning... :?:
Thanks!
R-870, R-871 and R-013 are the one I'm questioning... :?:
Thanks!