Help with automatic water changes

Neostyles · Jul 30, 2020

So about two weeks ago I set up a dos automatic water changes, I used the automatic set up of 1 gallon over a 24 hour period everyday. Now. I’m noticing that my ATO has not been coming on ever since I set this up. Am I doing something wrong? Is this normal? I also wanted to change the time of the water changes to late night but not sure of the code for it.
thanks in advance

TMB · Jul 30, 2020

This might sound like a stupid question... you are pumping 1 gallon out, for each gallon pumped in right? If so the ATO should act normally.

Neostyles · Jul 30, 2020

Yes both the dos add and dos remove are set up to move the same amount of water.

TMB · Jul 30, 2020

Did you test that it actually does that? Simple test - pump both outputs (clean and dirty) into two different containers.
The volume should be the same no matter the time the pumps ran.
You do need to run this test for a while though, say 1 gallon, because the difference could be small and appear to be the same on a short test.