Doser question

[Member No 1]

Sorry if this has been covered, but I couldn't find anything on it.
Maxi doser set to do AWC using 2 floats with the upper limit set to AWC/ATO. At the end of the cycle, when the upper limit is reached, and the Maxi turns off, for a brief few seconds, the pump head on the Doser 2.1 that is set up for ATO runs.
Is this a known issue? I know it's not much, it's the OCD in me.

 

[AZMSGT]

Yup, I had this problem and it did nothing but drive me crazy, it drove down my salinity and I was going crazy adding salt back into my tank.
I switched away from that method and went to metered AWC changes. Much happier I did it this way.
I take 200ml out and add 213.5 back 24 times a day. This method also adds back the amount of SW (320ml) that my KH Director takes out through the day.

FWIW, I tried all kinds of things to try to resolve the ATO topping off just after the AWC.

 

[Jaebster]

Couldnt you make sure that the AWC runs only during certain time of day and ATO during a separate time? I.e. AWC during dawn and morning, ATO from morning to dawn?

Otherwise, you'll have to run your AWC pulling old water and putting new water simultaneously so that water level doesnt change and trigger ATO.

 

[Member No 1]

Couldnt you make sure that the AWC runs only during certain time of day and ATO during a separate time? I.e. AWC during dawn and morning, ATO from morning to dawn?

Otherwise, you'll have to run your AWC pulling old water and putting new water simultaneously so that water level doesnt change and trigger ATO.

When the AWC is set up as AWC/ATO with 2 floats, the P4 controller knows when it's in a AWC cycle and deactivates the ATO. It's when the AWC completes it cycle, that for whatever reason the ATO dosing head runs for a few seconds.

 

[Jaebster]

When the AWC is set up as AWC/ATO with 2 floats, the P4 controller knows when it's in a AWC cycle and deactivates the ATO. It's when the AWC completes it cycle, that for whatever reason the ATO dosing head runs for a few seconds.

Ic...