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Post by kelly on Mar 28, 2007 12:26:04 GMT
i just realized this morning my master test kit is out of date by 4 months
my friend gave it to me when she gave up fishkeeping so god knows how long she had it for. i really don't fancy throwing it out it was barely used.will it still work or will it give me false reading?
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Post by mralgae on Mar 28, 2007 18:07:47 GMT
hi kelly, i can say from experience that it will have an effect on the water stats. mine had 4 mths to go and when i got new ones the difference in the readings were quite a bit
e.g ph was 6.8 on the old, and 7.2 on the new.
to the old set. they do have a shelf life and i certainly wouldnt trust the reads your getting from them. i will be very surprised if you dont find some difference in them when you replace them.
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Post by karen on Mar 29, 2007 19:57:23 GMT
I'd replace them without a doubt kelly.
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Post by kelly on Apr 9, 2007 8:54:22 GMT
well i bought a new test kit and decided to test with the old one and new one too see if there was a difference and there was my ph with the old one was 6.4 with the new one 6.8 and nitrites with my old one were 0 with the new one about 0.5 so thats a difference.
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