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VitaLink and Water Quality

VitaLink and Water Quality

Water hardness may affect the productivity of VitaLink nutrients and additives. Before you mix your VitaLink nutrients into your solution, please check your water quality to help get the best results possible.

The two main elements that contribute to water hardness from a growers perspective are Calcium and Magnesium, though these may only make up 50% of the total dissolved mineral content of the water, they are the ones that may influence a nutrient solution most.

There are a lot of different ways to look at and measure water hardness, and a lot of different things that can affect it. The simplest way for you to look at it, is to measure the EC of your water supply, it is also a good idea to keep an eye on the pH as well. For the purposes of the VitaLink nutrient range we should classify as follows:

EC Range (mS/cm) 

  • 0.0 - 0.3 = Soft Water
  • 0.4 - 0.5 = Moderately Hard 
  • 0.6 - 0.9 = Hard Water 
  • 1.0+ = Very Hard Water 

If you have ‘Moderately hard’ water, you could in theory use either Soft or Hard water nutrients, but ideally you would need more information relating to the specific calcium content. With either choice If you have ‘Very hard’ water you may want to consider softening the water to some degree, there are various options available.

Regardless of water quality, it is good practice to allow tap water to stand for at least 24 hours, to allow chlorine to dissipate, especially if the chlorine can actually be smelt from the supply.

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