So my home uses a personal well and I've been getting a little worried about running the well dry making so much RO water for my 400+gallons of reef tanks I own. Of course this is something I should think of before setting up a new tank but that's where the obsession comes in. So my question is; I live on a lake, it's literally in my back yard. Could I run a pump from the lake and use the lake water through my RO system? I'm worried about pesticides I know they spray occasionally taking care of the lake but I guess that's where the ro system comes into play. Am I crazy to think trying this or that I'm going to fleet up my well?