I've hooked up a second DOS to do small daily water changes on one of my tanks. No sump, changing directly from the aquarium.... been working nicely. Was wondering how to configure the DOS so that when I manually activate the "fill" pump on the DOS, it will add water at the rate it adds during the water change? Not using float swithes, but just want to do it myself when water level drops from evaporation. Is there programming that will allow me to do this?
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