calistyle
Active member
I plan on keeping a disc on hand as spare. Once my levels seem to test off the norm, I'll replace it.
Since a disc tests so many parameters, I imagine that the 30 day limit might be to only to a few, while other elements will be fine longer. To me, it depends on which one runs out first, if it's my Ca or Kh, I'll replace sooner. If it's oxygen or something else, I might hold out until other areas in disc exhaust.
Since a disc tests so many parameters, I imagine that the 30 day limit might be to only to a few, while other elements will be fine longer. To me, it depends on which one runs out first, if it's my Ca or Kh, I'll replace sooner. If it's oxygen or something else, I might hold out until other areas in disc exhaust.