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- Oct 13, 2016
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I'm planning a 120 gal with 40 gal sump. I'll have 50 gal fresh and saltwater storage in the basement. I'd like to wet skim to a drain for the drain side of water changes. I'm thinking about running peristaltic pumps directly from fresh and saltwater storage to the sump for fresh and salt ATO. In order for this to work, I think I'll need to have a controller, float switch in the sump, and salinity probe. Controller logic would decide how much salt and how much fresh to add when the float switch says the level is low. Is this a dumb idea? I also plan to dose 2-part, but the rate of 2-part should be much lower than skimmer drain and evaporation.