Reef Discussion
It depends - if you can turn off your return, do the water change and not have the level in the sump drop below the fill sensor, then it will make no difference if you leave it on or not.
I put the new water into the sump and use the return to pump it back to replace the water from the display. The return pumps faster than the hose I use to siphon the water in, so the level in the sump drops - if I leave the ATO on, it will start to fill. I guess that if you add the make up water directly to the display, you won't have this issue; although I find it's easier and less disruptive to add the new water to the sump.
Every setup is different - as long as your ATO is not dumping freshwater in (or being left switched off) then whatever works for you.
I put the new water into the sump and use the return to pump it back to replace the water from the display. The return pumps faster than the hose I use to siphon the water in, so the level in the sump drops - if I leave the ATO on, it will start to fill. I guess that if you add the make up water directly to the display, you won't have this issue; although I find it's easier and less disruptive to add the new water to the sump.
Every setup is different - as long as your ATO is not dumping freshwater in (or being left switched off) then whatever works for you.
Depends upon where the water is being removed from and returned too.
I remove mine from my DT and fill it up into the DT so the ATO is one of the few things left running.
Return pump, Gyre's and Skimmer all get switched off during my water changes.
If you do it like Ben does above then you most certainly need it turned off.
I remove mine from my DT and fill it up into the DT so the ATO is one of the few things left running.
Return pump, Gyre's and Skimmer all get switched off during my water changes.
If you do it like Ben does above then you most certainly need it turned off.
I am also like @Ben Daley so I turn my ATO off during a water change.
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