Question about KH test kits......problems

[kokamo]

Hey guys, I have been checking my KH in my 10 gallon with a Tetra-Test and I have been getting very high results.....like 17 to 19 drops....... Then I take a water sample to my LFS and they confirm the KH to be around 11.5 to 12 drops using the same exact test kit brand new out of the box. So, I figure I am doing somthing wrong, I go back and follow the instructions again, just as stated on the paper instructions and I still come up with about 17 or 18. What do I do now? Is there a possibility that this kit is old or somhow a defect? Could the KH change on the way to the LFS? I am at a loss here and don't know what to do.
I guess I should get a Salifert test from somewhere?
Thanks for all the support guys!
Joe

 

[kennys]

Hey Joe,
Funny seeing you in here.

The other funny thing is, I have almost the same exact problem. My KH has been sitting at an average of 13. But I checked it on Monday am and its sitting at 19 :help:
Had the wife take a sample in to have it tested and low and behold it was at 19. Now I am doing a gradual calcium increase to try and get it down. Oh well. Always something.
Good Luck
Kenny

 

[kokamo]

HA! Good to see you here as well. Your tank looks awesome by the way.
Yep, 19 confirmed twice is pretty high. Can I have some of that? I guess I need to buffer it up right? Still kinda confused as to what to do to raise it. I guess I need to spend a little more time talking to JB "DO A SEACH" Turner!!! :hilarious
Joe