Salifert test kit inaccurate?

[JACK50REEF]

Depending on how firmly you place the tip, it shows different levels. Am I supposed to completely press the tip all the way?

 

[Randy Holmes-Farley Verified Community Expert]

It makes no difference how the tip is attached, as long as it is not leaking air at the joint. The variable amount of air in the syringe is unimportant because the liquid amount will be unchanged. Even with no tip, or a tip so big the water never entered the syringe itself, the amount of fluid sucked up based on the movement of the syringe plunger movement is the same.

 

[JACK50REEF]

Ok! Awesome. Thank you for the quick reply!

 

[ou12004]

It makes no difference how the tip is attached, as long as it is not leaking air at the joint. The variable amount of air in the syringe is unimportant because the liquid amount will be unchanged. Even with no tip, or a tip so big the water never entered the syringe itself, the amount of fluid sucked up based on the movement of the syringe plunger movement is the same.

I just tested my Magnesium and it came out at 30 is that even possible?

 

[JimWelsh]

I just tested my Magnesium and it came out at 30 is that even possible?

Of course not.

 

[ou12004]

Of course not.

Your right I found a video it is 1300

 

[Randy Holmes-Farley Verified Community Expert]

Ok! Awesome. Thank you for the quick reply!

You're welcome.

We had a Reef Chemistry Question of the Day on this topic:

Reef Chemistry Question of the Day 161 Using a Syringe
https://www.reef2reef.com/threads/reef-chemistry-question-of-the-day-161-using-a-syringe.226267/

 

[Randy Holmes-Farley Verified Community Expert]

Your right I found a video it is 1300

That sounds better. Some people read the syringe backward at first. Is that what happened?

One way to think about this is that with any syringe or drop count test kit, more liquid added before the color endpoint should be resulting in higher and higher values.