High Alk?

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What happens if its a kit error? Also if its a bad batch should I even bother contacting Red Sea because I have seen a lot of bad reviews with their customer service. haha I'm like 99.9999% that it isn't pro haha.
 
cwb_reeftank said:
What happens if its a kit error? Also if its a bad batch should I even bother contacting Red Sea because I have seen a lot of bad reviews with their customer service. haha I'm like 99.9999% that it isn't pro haha.
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If it is a kit/testing error and alkalinity is really 5.6 dKH, you'd be taking an incorrect action to try to lower it.

Maybe get some tested at the lfs, or make a standard to test.
 
Ecoscape Reef Rock
cwb_reeftank said:
how would I go about making a standard?
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If you have a scale, here are a couple of options:

The Jim Welsh option:

One approach: Take 15.90g of thoroughly dry sodium carbonate, and dissolve it into 1 liter of pure (RO/DI) water, using a volumetric flask. This gives a 300 meq/L solution. Then, do two 10x serial dilutions (or one 100x) using volumetric glassware to get it down to a 3.0 meq/L solution.

or

Dissolve 1.135 grams of baking soda in exactly 1 gallon of RO/DO to give an alkalinity of 10 dKH
 
Top Shelf Aquatics
cwb_reeftank said:
so to make it a dKH of 10 so I can see if my Hanna checker is reading right?
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I think that should give a pretty close answer. It won't be perfect because it isn't seawater, but the difference should be small. Let's see what it gives. :)
 
Hanna also sells a standard to check the checker. But it's $20. The diy version should give you an idea if the tester is in error. With red sea blue bucket a dkh of 13, there's something wrong. I used that salt for almost 2 years and it was never above 8 dkh. Something going on, just not sure what? Hopefully the diy standard will help eliminate one possibility.
 
WWIII said:
Hanna also sells a standard to check the checker. But it's $20. The diy version should give you an idea if the tester is in error. With red sea blue bucket a dkh of 13, there's something wrong. I used that salt for almost 2 years and it was never above 8 dkh. Something going on, just not sure what? Hopefully the diy standard will help eliminate one possibility.
Click to expand...

Is the Hannah an actual alk test check, or just an absorbance check?
 
Tidal Gardens
Randy Holmes-Farley said:
Is the Hannah an actual alk test check, or just an absorbance check?
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I don't think it's actual alkalinity, I'm not sure exactly what the solution is? I've used it before after I dropped my hanna egg on the tile floor to make sure it was still reading correctly. It has one clear solution of 0 dkh and another that's tinted and supposed to read approximately 5.0 dkh.
 
cwb_reeftank said:
Ok unfortunately I won't be able to test till Saturday [emoji17] but I will on Saturday. It keeps running high for some reason and I don't know why.
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Very strange indeed! I'm interested to see what is actually going on here
 
Deltec
ReefBot Lab, Automated Water Tester
AS
well I mixed the baking soda into 1 gallon of RO/DI water, then I followed the instructions for the Hanna Checker, 10mL of water to test than put it in the checker, pull it out and put the reagent in, turned it five time, wiped it off (I did that in the beginning as well) and placed it in the checker and it came up to 20. So should I assume that it is doubling the Alk, or should I contact Hanna?
 

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