Auto and manual water change with DOS?

[cbellm]

can you configure the DOS to do both fuctions? I am thinking that it would be nice to have a base line of 2 percent a day being removed, but if something goes wrong I can press a button and know a larger change will happen though the day? Can I just run through both tasks, or does this require special programming?

 

[SuncrestReef]

It's not easy, but it can be done. If you're only going to do an occasional manual change, it's easier to just re-run the Task to reprogram the DOS. But if it's something you intend to do often, it can be completed automated. I posted detailed instructions here:

https://www.reef2reef.com/threads/dos-awc-manual-and-auto.799990/#post-8754207