Ok so this might be a dumb question but I notice that I have been looseing water in my sump. Is that just evaporation? If so I can just add fresh water right? I just want to make sure so my salinity isn't jumping up and down. Man I'm going to have to top off alot. I have already topped off twice to day.
Yes, you should be adding fresh RO/DI water to your sump. I wouldn't get too worried about topping it off every time you see any change in water level. I usually top mine off once a day.
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