Vitalink - PH Down

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  • pH Down – reduces the pH of your nutrient solution
  • Highly Concentrated – 81% Phosphoric Acid
  • Phosphoric Acid – one of the best and most stable pH Down adjusters
  • Corrosive – requires careful handling

Vitalink pH Down 250 Mls 81% Phosphoric Acid

Vitalink pH Down 250 Mls (81% Phosphoric Acid) is used for reducing the pH of your nutrient solution.

Check out our complete water conditioning toolkits, which come with an EC meter, pH meter, pH up & down, pH buffer, chlorine neutraliser, jug and syringes. Choose between Essentials and Bluelab versions.

How Vitalink pH Down Works

Vitalink pH Down is a concentrated phosphoric acid that can be used to reduce the pH of almost any liquid that it is added to. When growing plants in hydroponics or aeroponics, it is necessary to keep the pH of your nutrient solution within a certain range. Different plant species have different requirements but in general most plants like a pH range of 5.5 – 6.5. pH Down is added sparingly to nutrient solution to help keep the acidity within this range.


Your choice of size of Vitalink pH Down (81% Phosphoric Acid) (choose your size above)

How to Use pH Down

Check out the One Stop Grow Shop Blog to find out how to get pH right in hydroponics. You'll also find information on calibration and the availability of nutrients at different pH ranges.

Warning: If pH Up and pH Down come into contact with each other they react violently and even small quantities can be explosive. Be very careful when handling pH Up and Down as they are both corrosive and will cause irritation to skin and burns on clothing. Keep out of the reach of children and take appropriate care and precautions when using.

For more info on handling aggressive liquids, call our team on 01782 749955.


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