Hello Guys,
I'm joyreef, i wrote the article on www.joy-reef.com about building the diy dosing pump.
I'm very happy you built my project and you like it.
I just wanted to tell all that you can try a demo of the project, just going on:
https://iot.joy-reef.com
user: demo@joy-reef.com
pass: demodemo

Build the doser is really simple and i'm always here to help if you need!
Let me know what you think!