Question on ATK for large tank owners!

[Dolphins18]

Hello,
Have about 300 gallons of water total, the ATK defaults to being shut off after 5 minutes, what do you guys have your ATK cut off set to? I have found 5 minutes is not enough time to get it level.

Thanks!

 

[SuncrestReef]

If your ATK is connected to your Apex rather than in standalone mode, then the 5 minute limit is totally configurable to your preference. The guideline is to monitor how long your tank takes on average to refill for the loss of evaporation, then add a little extra time. For example, my tank takes about 45 seconds to 2 minutes maximum (usually only in summer), so I set my When timer to 3 minutes. If it ever takes more than 3 minutes, then something is wrong and I want it to alert me.

You can also decrease the Min Time value from the default of 1 hour down to a lower value, so the ATK will refill more frequently with smaller volumes. I have mine set to run every 30 minutes.

Read my ATK tutorial for a detailed description of the code:
https://www.reef2reef.com/ams/neptu...torials-part-3-automatic-top-off-kit-atk.692/

 

[Dolphins18]

You rock.
Thank you!