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Old 07-25-2009, 02:25 AM   #1
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Salifert KH/Alk test kit

I have the above mentioned test kit and it has an Alkalinity check solution in a small bottle but the instructions don't say how to use it. does anyone have any idea how to use it?
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Old 07-25-2009, 09:20 AM   #2
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Use the solution instead of tank water and run the test as normal. The solution will give you a reading of 8.1 dKH. Look on the test solution bottle and it will show the dKH of that solution since I'm not 100% sure they all say 8.1. But whatever it says, that's what the test will show.
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Old 07-26-2009, 01:34 AM   #3
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I did a test just now of the 110g tank and the KH/alk were way off. It's higher than it should be but what I don't understand is I did a PWC yesterday and one today and it's still outrageously high. How can I get it down to NSW(8.1-8.3)?
my Sg is 1.025, NO3 is 5-10(it's hard to tell with the API test kist and the lights that I have in the room.),ph is 8.4.
I just tested my batch of SW the SG is 1.028, CA 440,kh 14.7!,Alk 5.26! I used a Sera test kit for the Ca and a Salifert test kit for the KH/ALk. I forgot to mention that I'm using Reef Crystals salt mix. Is the salt mix causing the problems? Should I mix up the bucket before I use it to throughly mix the salt incase it settled?
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Old 07-26-2009, 12:03 PM   #4
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Did you do a test with the solution? Did your test result match the dKH printed on the bottle?
Quote:
kh 14.7!,Alk 5.26!
dKH is your alk reading....so those are the same reading. 14.7 dKH = 5.25 meq/l
Are you adding any buffers? That alk is high...unusually high for RC alone.

I just caught this...
Quote:
SG is 1.028
Are you using a refractometer? That is a little high. The higher the SG, the higher all the parameters will be.
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Old 07-26-2009, 12:13 PM   #5
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Yes, I used the test bottle and got 8.1. I haven't added any buffers. I just got done using AZ-NO3 when I did the water changes. Yes I'm using a refractometer. I made the second PWC a little high since my SG in the tank was a little low. I usually try to make it 1.025.
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Old 07-28-2009, 04:51 AM   #6
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I purchased a Sera kH test kit to verify my reading with the salifert kit. the Sera kit gave me a dkh of 15! I'm going to get a food grade container to see what happens.
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