Help with trident alk reading aft

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clhardy5

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Help with trident and alk testing !!! Changed all three reagents yesterday….same lot as before. - middle box out of the 6 month supply. Ran a test after changing and all looked well-alk at 8.7- where it’s been averaging for awhile. The trident ran the next test at 6pm, and again, things looked normal. Woke up this morning to an alarm. Alk at midnight -was 13.08. And then at 6am-the trident said the alk was at 14!! I retested the water twice with Hanna, and it read 7.8 both times. I then retested with API (I know…some say it’s junk-but it’s my backups backup!). API read 8-9. At 8 it was yellow, but not bright yellow. With 9 drops it was bright yellow. So, Im calibrating the trident now. What else? What would cause the trident test to swing so dramatically?
 
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Gtinnel

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That's the plan. I'm pretty sure it is testing error....just frustrating. I'll recalibrate in another day, and see what happens.
I know this thread a few weeks old but were you able to get your problem resolved. I just changed reagent A on my trident for the first time and I'm now getting high reading on alk and lower reading on cal, and I'm not sure why?
 
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clhardy5

clhardy5

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I know this thread a few weeks old but were you able to get your problem resolved. I just changed reagent A on my trident for the first time and I'm now getting high reading on alk and lower reading on cal, and I'm not sure why?
I did recalibrate - and it still read high for a day.....but I knew that it was wrong - so I let it sit for another day and it resolved on its own. ie.....I did nothing, and the Alk dropped after one day - back to where it was before I changed the reagents.
 
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PICK the Most Tested & Least Tested Parameters of your Tank (Pick 2)

  • Calcium (most)

    Votes: 43 6.4%
  • Alkalinity (most)

    Votes: 467 70.0%
  • Magnesium (most)

    Votes: 5 0.7%
  • Phosphate (most)

    Votes: 59 8.8%
  • PH (most)

    Votes: 66 9.9%
  • Nitrate (most)

    Votes: 64 9.6%
  • Nitrite (most)

    Votes: 3 0.4%
  • Ammonia (most)

    Votes: 15 2.2%
  • (least) Calcium

    Votes: 9 1.3%
  • (least) Alkalinity

    Votes: 4 0.6%
  • (least) Magnesium

    Votes: 57 8.5%
  • (least) Phosphate

    Votes: 14 2.1%
  • (least) PH

    Votes: 35 5.2%
  • (least) Nitrate

    Votes: 12 1.8%
  • (least) Nitrite

    Votes: 197 29.5%
  • (least) Ammonia

    Votes: 255 38.2%
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