At 1000 ppm you water requires a water softener and filter as those ppm levels are not within municiple regulations and you should have it checked as thats hard water similar to well water. City water higher then 500 is usually un acceptable as it means its not being filter correctly or you have ground leakage to your water supply.My tap water is 250 ppm at ph 7.In my aero and hydro I subtract my starting ppm from total nute ppm to get a true nute ppm and keep my water at 5.5-5.8 ph and for soil I ph my water to 6.8 ph