I am trying to use my DOS for AWC and would like to perform a 1 gallon per day water change at 2PM each day. When I set up the interval for the first step to perform a 3,700ml OSW removal (a little less than a gallon) it requires me to perform this over the course of 45 minutes in 4 doses (each dose every 11 minutes). Why can't I perform the entire gallon removal in 1 dose in 15 minutes (3,700ml/250ml/min=14.8 minutes)? When I try to reduce the time to anything lower than 45 minutes I receive an error message "Not enough time; increase interval or decrease volume". Is this a safety measure to ensure that the DOS doesn't overheat or something along those lines?
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