AP test kits

locoyo386

Member
Originally Posted by chub
http:///forum/post/3078355
How do you tell if your test kit is old? Theres no date that I can see.
When you get weird readings that don't make sence. Compare them to other test kits (store, friends etc.) than you will see the difference. Note, that sometimes it if how we conduct the test (ie, the one for nitrates).
 
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