ceastman Posted February 15, 2014 Share Posted February 15, 2014 Hanna check 1st test 140 (/50 * 2.8 = 7.84 dKH, 2nd and 3rd test 129 (/50 * 2.8 = 7.224). So I did a Red Sea pro kit titration and that came in at 9.5dKH Quote Link to comment Share on other sites More sharing options...
+etannert Posted February 15, 2014 Share Posted February 15, 2014 The Hanna checker is superior as long as you are precise in following the directions. It's important to wipe down the vial every time you put it in the colorimeter. Quote Link to comment Share on other sites More sharing options...
ceastman Posted February 15, 2014 Author Share Posted February 15, 2014 ah dust on the outside can skew results? Quote Link to comment Share on other sites More sharing options...
victoly Posted February 15, 2014 Share Posted February 15, 2014 Big time. Wipe with a lint free cloth before c1 and c2. Quote Link to comment Share on other sites More sharing options...
+etannert Posted February 17, 2014 Share Posted February 17, 2014 Dust or fingerprints, etc. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.