Am confused about whether I need to add Magnesium Sulphate to an EI dose if I live in London.
Thames Water's quality report for my area is here. They give a minimum of 18.9 ppm of Nitrate NO3, but nothing I can see for Potassium K or Magnesium Mg.
Judging by this, it seems I could cut the NO3 dose in my EI calculation considerably. Is this right?
I've also read that hard water has a high concentration of Magnesium. Since this is very hard water (CaCO3 is 285 ppm), is the Magnesium also likely to be high enough not to dose Magnesium Sulphate in the mix? What level should I dose this at?
Does anyone know?
Thames Water's quality report for my area is here. They give a minimum of 18.9 ppm of Nitrate NO3, but nothing I can see for Potassium K or Magnesium Mg.
Judging by this, it seems I could cut the NO3 dose in my EI calculation considerably. Is this right?
I've also read that hard water has a high concentration of Magnesium. Since this is very hard water (CaCO3 is 285 ppm), is the Magnesium also likely to be high enough not to dose Magnesium Sulphate in the mix? What level should I dose this at?
Does anyone know?