KH Director and ALK spikes

mwilk19

Well-Known Member
Review score
+0 /0 /-0
View Badges
Joined
Jan 19, 2013
Messages
619
Reaction score
658
Review score
+0 /0 /-0
Location
Fort Worth,Texas
Hello,
I recently switched to the Triton Method so I have my KH Director only monitoring my ALK. Recently, I get an occasional large spike shown on the KH Director and then it reverts back to normal. If I test ALK using the Hanna checker it shows a normal reading. I've recalibrated multiple times. My KH Director PH probe is about 15 months old. Is this most like caused by the probe going bad?

2021-09-05.png
 
OP
mwilk19

mwilk19

Well-Known Member
Review score
+0 /0 /-0
View Badges
Joined
Jan 19, 2013
Messages
619
Reaction score
658
Review score
+0 /0 /-0
Location
Fort Worth,Texas
Just as an update. I replaced the PH probe in my KH Director last month as it was becoming erratic. Even with the new probe I still get occasional spikes. Mostly the readings are pretty steady.
 
OP
mwilk19

mwilk19

Well-Known Member
Review score
+0 /0 /-0
View Badges
Joined
Jan 19, 2013
Messages
619
Reaction score
658
Review score
+0 /0 /-0
Location
Fort Worth,Texas
Have you opened a ticket with GHL? Maybe @[email protected] can help.
I haven't. It happens about every 2 days for just one sample. I know it's not accurate because there's no way it could jump from 8.0 to 10.0 and then back to normal in a four hour cycle. It's better since I replaced the probe.
 

KGV

Active Member
Review score
+0 /0 /-0
View Badges
Joined
Feb 9, 2021
Messages
114
Reaction score
47
Review score
+0 /0 /-0
Location
Belgium
Hello,
I recently switched to the Triton Method so I have my KH Director only monitoring my ALK. Recently, I get an occasional large spike shown on the KH Director and then it reverts back to normal. If I test ALK using the Hanna checker it shows a normal reading. I've recalibrated multiple times. My KH Director PH probe is about 15 months old. Is this most like caused by the probe going bad?

2021-09-05.png
Are you sure there are no occasional air bubbles in the reagent line? That could explain these upward bumps.
 
OP
mwilk19

mwilk19

Well-Known Member
Review score
+0 /0 /-0
View Badges
Joined
Jan 19, 2013
Messages
619
Reaction score
658
Review score
+0 /0 /-0
Location
Fort Worth,Texas
Are you sure there are no occasional air bubbles in the reagent line? That could explain these upward bumps.
I replaced the PH probe for the KH Director about a week after I posted this. It now only happens occasionally. When it does I just ignore it. I don't see any bubbles in the line but it doesn't mean that it doesn't happen.
 

Have you ever torn down a tank over an issue you couldn't seem to beat?

  • Yes! I have. (Tell us about what issue you faced in the thread.)

    Votes: 202 25.0%
  • No. Thankfully, I haven't.

    Votes: 412 51.0%
  • Nope, but it almost happened. (Share your experience in the thread.)

    Votes: 62 7.7%
  • Not yet, but I'm almost there. (Tell us what you're dealing with.)

    Votes: 64 7.9%
  • If you reef long enough, this will eventually happen to you.

    Votes: 53 6.6%
  • Other

    Votes: 15 1.9%
Top