|
03/03/2018, 05:44 PM | #1 |
Registered Member
Join Date: Feb 2012
Location: Orlando
Posts: 1,109
|
I think the Hanna Calcium checker gets a bad rap
After seeing some bad reviews online I still purchased a Hanna calcium checker a few months ago with a bit of trepidation. I will say that the test procedure was a little daunting at first and you only need .1ml of sample water, but it comes with a nice 100ul pipette that makes it pretty quick and easy to get .1ml every time. I believe that some earlier versions of the checker didn’t include this tool. Once you get used running the test it becomes second nature and really isn’t difficult to do.
I have been tweaking my alkalinity and calcium numbers a little and as such I have been testing daily The numbers I have been getting seem to be very accurate and predictable. I have been slowly raising my calcium and for the past 5 nights (after I increased my calcium dosing) the Hanna checker has shown an increase of exactly 6ppm every night. |
03/03/2018, 07:17 PM | #2 |
RC Mod
Join Date: Mar 2002
Location: Mountain View, CA, USA
Posts: 88,616
|
There are varying reports on this test device, as with all of the kits. I am not sure how many versions there have been, for that matter.
__________________
Jonathan Bertoni |
03/04/2018, 05:55 PM | #3 |
Registered Member
Join Date: Nov 2009
Location: Reseda, Ca.
Posts: 1,717
|
the original meter did not have that tool. the pipette came along quite a bit later after they got their bad rap......how accurate do you think the tool is ? ....what is 0.1ml ??...two or 3 drops ??
|
03/04/2018, 06:08 PM | #4 |
Registered Member
Join Date: Feb 2012
Location: Orlando
Posts: 1,109
|
The tool seems extremely accurate to me. It comes with a little tip to put on the end of it and it’s hard to see in the picture, but the tip has graduated lines on it. The tool fills the tip to exactly the same line every single time.
|
03/04/2018, 10:28 PM | #5 |
Registered Member
Join Date: Sep 2000
Posts: 918
|
agreed. i had the older version with out the pipette. i ordered a pipette and results have been very consistent now
|
03/06/2018, 05:00 AM | #6 | |
Registered Member
Join Date: Oct 2017
Location: DTW, Michigan
Posts: 122
|
Quote:
|
|
03/06/2018, 01:49 PM | #7 |
Registered Member
Join Date: Oct 2014
Posts: 104
|
Hi,
Recently watched a review of the Hanna Calcium checker and it appears the step for dilution requires the DI water. The reviewer suggested using Hannah's DI water to dilute and also clean the equipment. Most issues came with the use if RO/DI water from reefers RO unit. |
Thread Tools | |
|
|