Hey,
Im just wondering does anyone know how the Hanna Alk checker work? Chemically? As I understand it alkalinity is the tolerance to the change in pH, but the hanna checker only reads the spectrum from control seawater (no regent added) and the final one after the reagent are already added. So...
I have a bunch of Hanna checkers and smart stir for sale. These prices are not shipped but I am willing to ship. I would prefer to sell them all at once. Reasonable offers will be considered.
Salinity (includes 8 calibration packs) $45
Alkalinity (DKH) (nearly new reagent) $30
Phosphate ULR...
So I just got a new pack of Tropic Marin classic salt. Its dKH is supposed to be 9-10 dKH, but when I mix it up it comes out to be 14 dKH!!!?!. I mixed and tossed that bag around when I first got it.
Ive made two batches with the same results. I measured and used the correct salt portions: ½...
Hanna checker
Calcium checker with 2 refills
Dkh checker no refill
Ultra low phosphate almost new refill
Regular phosphate almost new refill
sell as a lot $180 shipped
Calcium and alkalinity both have plenty of reagent left. Phosphate does not come with any. Selling off since I just received the starter bundle as a gift.
Calcium sold
Alkalinity sold
Phosphate LR $25
All plus shipping
Hanna alk tester 25$ needs reagent other wise like new
Api Master reef test 15$
Salifert calcium brand new 15$
Salifert alk used twice 10$
Take all for 50
Hallandale FL 33009
Hanna alk checker (HI 772) up for sale. Recently upgraded to the apex Neptune. Would also trade for Hanna nitrate checker. Used maybe 4 or 5 times. Lots of reagent left. Purchased 3 months ago. Free local pickup Chicago South Burbs or buyer pays shipping.
Just finished a bottle of alkalinity reagent on my Hanna tester - alk reads 11.8. Open the new bottle and re-test to check consistency. 10.7 ... Run a third test (from new bottle), confirms 10.7!
The previous bottle is still well in date, has been open for approx. 4 months. Confident my testing...
Asking $175 for the entire kit plus shipping. Only used for a few tests. I am selling a barely used Hanna Reef kit. It includes the Calcium, Alkalinity, Phosphorous, pH and Salinity testers along with extra reagents and calibration fluids.