You had two outliers, in 5 consecutive tests you were between 132-139. I guarantee you got comfortable with the process and missed something. Try a few more, if I'm wrong, I'm wrong. Just my $.02
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I have the last version 2.3.3.2 which is from 12Dec2016. I even tried the beta version available...and no changes app keeps crashing and there are some schifting issues on the left menuThere was an update released 2 days ago of the app to support android 7.1.1. Before the update the app was crashing on my Nexus 6P. Now it's all good in the hood.
So I have been playing with my idip more and more now that tank is running and I test alk a lot to dial in my calcium reactor along with nitrate. I can say I am comfortable enough to get identical alk readings on the unit 3 times in a row. Found out that the trick to the whole unit is how you swish the strips during the countdown. Basically you have to do 2 swipes of the strips in the unit per second. You do this starting at 20 but you take out the strip once you finish the double swish on 2 and put the cap on 1. This is super simple if the device is sitting on flat surface and you have test strip on one hand and cover on the other. It's really like you are following a beat with dual swish per second once you get the hang of it.
Well had a pretty cool weekend drove up to DC for MACNA it was pretty cool ive never been to one and i must say there was a lot of stuff to see and lean a ton of cool new stuff and plus they were giving tons of free stuff away. After making my first few rounds picking up so cool new toys and some acro colony's $65 a piece i came across a both with a crowd of people standing around watching a demonstration of the new all in one water testing digital photometer system called the eXact iDip it basically use small water sample to send the test result right to your smartphone in the app that comes with it the kit basically covers almost every kind of water test you could ever have run. if you're in DC check them out its pretty cool.
Magnesium strips? You mean thh? There are no mag strips for the idip. You test calcium and total hardness and it will do a calculation on magnesium.
On the first line it says best accuracy 7.5%. So if it's 100 it would read best case 7.5.... or maybe... 192.5? Seems like they should write that differently
I also have a question regarding ALK. I follow the instructions as well as the tips on this thread. However, my ALK is consistently low as compared to my hanna checker. For example, I just obtained a reading of 115 with the idip and 144 with the hanna. I believe the hanna due to my dosing 2 part routine. I do appreciate having the idip as my go to tester. But this frustrates me. Also having issues with THH (to high) readings. But ine thing at a time. TIA
It means that the reading is within 7.5% of the number you got. So basically if the number is 100 the actual result is between 92.5 and 107.5.