Apex programming for ATO and high pH

[punchy7080]

So I have basic code to turn off my ATO if pH > 8.6. Problem is I’m using a co2 scrubber which keeps the pH around 8.3 during the day and I’m also dosing kalk in my ATO. So when ATO runs, pH spikes up for a bit and it shuts off the tunze. It’s deferred for five minutes and then doses again when it starts back up creating a viscous cycle. How do I only turn off the ATO if pH is above 8.6 for a certain amount of time, say two minutes? Thanks!

 

[ZombieEngineer]

For what you asked specifically

Defer 002:00 Then OFF

Though this will apply globally to all conditions that turn it off.

This is slightly more complicated, but I would suggest this approach instead that I used successfully for years before I switched to 2 part or calcium reactors for dosing.

Kalkwasser ATO to minimize pH change

I have noticed that the question of how to set up a reliable ATO that uses kalkwasser has been coming up a lot in these forums. I have spent quite a bit of time optimizing a code that helps to limit the effect of both natural daily pH swings as well as limiting transient changes in pH caused by...

forum.neptunesystems.com