Hanna HI736 Phosphorous ULR Checker: Tips For Accuracy

Recently I had been having issues getting some consistent and, I believe, accurate readings with my Hanna HI736 Phosphorous Ultra Low Range Checker. Here are some tips to help ensure you do get the most accurate readings possible. First of all make sure the water sample is free of debris and the vials do not have any water on the outside. The vials also need to be wiped down with a micro fiber cloth, like one you would use to clean eye glasses, to make sure there are no finger prints on the outside. You should also do the following:

• Make sure you don’t create bubbles by shaking the vials too much.
• Avoid letting the sample with the reagent sit for too long in the vial before you put it in the meter. After adding the reagent shake the vial gently for two minutes and then put it in the meter right away. If it is reacting for more than two minutes you may get a higher reading since the reaction time is longer.
• Don’t let the sample sit in the vial after the test is done. Discard it immediately as the vial might get stained and impact future tests.
• When done with the test rinse the vials with RODI water and put the vials back in the test kit. Do not rinse with tap water.
• After using the vials for a year replace them since they may get dirty or stained after a lot of use. Replacement vials only cost $8 so it is worth it.

 

Additional Resources

If you would like some help with a new tank build, including help designing a custom aquarium, or help re-configuring your current setup then you can visit this page for more information. And if you are looking to add some equipment, I do sell GHL, Pax Bellum, Reef Octopus Calcium and Kalk Reactors and Royal Exclusiv products, including Dreamboxes, which is the equipment I use and recommend. I also sell Reef Brite metal halide and LED fixtures as well as Maxspect & IceCap Gyres.

As for additional insights and information, please explore my many other reef tank and SPS related articles as well as my YouTube channel. For an even deeper dive into reef tank care you can check out my Reef Keeping Master Class. This online course is an immersive and one of a kind educational tool designed to help reef aquarium hobbyists build and maintain a beautiful SPS reef tank. The course is a series of video presentations with some supplemental video from my YouTube channel. There are also quizzes to help students retain and understand the information presented in the course.

Need some frags…..I can help with that as well 🙂 Please visit my SPS Frag store to see what is available.