Hi,
Below some more details about the problem I am having. It looks a software issue. For some reason channel 2 stops before dosing the requested 62ml.
The problem can be reproduced just by scheduling 250ml per day in 4 intervals. I tried to reset everything and afterwards the problem persists. When I ask the doser to pour 62 ml in manual mode it works fine (not really because for some reason after setting 62 ml it reverts to 45 ml that seems to be the maximum). When it is scheduled to dose the 62 ml it works for channel 1 and 3 but for channel 2 it doses a small amount and stops. I suspect that the continuous beep that I found after my Xmas holidays was related to the open dosing intervals that are not closed and produce at the end a bigger issue in the software.
After many trials it seems that the way to make it work is to schedule more intervals of a shorter time. With 12 intervals instead of 4 it seems to work. But I am not really confident of what it can do.
Probably it is not necessary to send you a binary, just try to dose 250 ml in 4 intervals in the first 3 channels and check what channel 2 does. Just reproduce the setup of the screen of the video below. It was OK with 200 ml but when I increased to 250ml because my corals were consuming more I had the issue.
In these videos I reset the time for the first dosing of channel 2 that should dose 62 ml. It should dose for 6,2 * 13seconds that is the default calibration, more than 60 seconds, but after a few seconds it stops for channel 2. Then I go to manual and it works fine for 45 ml that seems to be the maximum in channel 2
https://www.youtube.com/watch?v=tThm1nWTIhI
https://www.youtube.com/watch?v=YAdtVtMPtdU
Apart of the problem that caused my stony corals tank drop the KH to 3 during last Xmas, as I said I find quite cumbersome the programming with the bt, you need a desk close to the aquarium that I do not have, and even a desk is not enough because you have to locate the computer very close to the lamp or doser.
Anyway I appreciate all the effort you put in the improvements of this product but for a dosing pump first is reliability and afterwards functionality.
BTW a video of the corals in the tank. They have by luck survived the KH 3. I had one lost but not sure if related to the low KH
https://www.youtube.com/watch?v=EjyqgxQKDMA&t=25s