I'd like to set up a system that uses wet skimming to continuously remove dirty tank water and use a controller combined with an ATO to add either salt water or freshwater depending on the tank salinity. Here's how I think it would work: When the ATO outlet energizes by loss of sump water volume (evaporation combined with wet-skimming), a salinity controller (arduino or otherwise) plugged into the ATO outlet is powered up and makes a measurement of the tank water salinity. If that salinity measurement is less than a reference set-point, then outlet 1 is energized to pump saltwater to the sump, otherwise, outlet 2 is energized to pump freshwater to the sump. When the sump water volume is replaced, the ATO turns the controller off and no more water is added to the tank. I've been trying to find out how to use a conductivity probe with arduino to measure the salinity but I'm coming up sort on finding instructions on what probe to get, how to connect it and read its measurement. Any help would be awesome, Thanks!
Making a Salinity Controller for ATO-Continous Auto Water Changer
- Thread starter kenny b
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