I am looking for help/assistance in incorporating a auto water change for my apex. I plan on using a pump to drain my sump of 4-5 gallons of water a day Monday-Friday. On the weekends it wil give me time to make up fresh saltwater mix. I then plan on using a pump to drain fresh saltwater back into my sump. I will be doing this on a timed manner. Meaning it takes 3 minutes to drain water from sump but it takes a little over 4 minutes and 30 second to pump fresh saltwater back into my sump.
I would like to shut off main pump and skimmer for approxiametley 10 minutes which is the time it takes for main tank to drain fully. Once 10 minutes go by pump will turn out to take 5 gallons out or run for approxiametley 3 minutes and shut off. Once drain pump shuts off refill pump will come on for approxiametley 4 minutes and 30 seconds. Once refill pump is done return pump would then kick on putting thebwater back into main tank. After doing that which would be approxiametley 4 minutes skimmer would kick back on.
I would need to turn off auto top off somehow which i plan on doing with the breakout box. I have a float switch for ato which I also need a program/coding for.
Thank you in advance to anyone who decides to help or chime in. If someone has a easier suggestion I'm all ears.
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