3 Different test kits...3 different results ??

[giffman67]

I finally got a TF100 kit and started using it a couple of days ago. I'm also still using the Basic K-1001 and Bio Guard Multi Test 1200V kits that I had previously purchased. Figured I might as well use the K-1001 / BG kits up and have the ability to triple check my results while I'm learning. All tests are done using water drawn 10-12" under the surface, in front of the skimmer.

Here are the results:

TF100 FC 5.5 (down from 11.5 yesterday !?) Tested twice...
K-1001 FC 2
BioGuard FC 2

The PH on all three is slighly different. All are within the ideal 7.4-7.6 range, but they are different.

Any thoughts?

 

[jblizzle]

Sure, here are my thoughts ... pick one and trust it
You will drive yourself crazy trying to compare multiple kits, etc ... especially if 2 of them are color matching tests.

I would choose the TF-100 myself

 

[Bama Rambler]

I totally agree with JB. Use the TF-100 and trust it. I assume you used the FAS-DPD test for that number?