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pH Down and pH Up




The pH levels in all hydroponics systems need to be carefully monitored and controlled. The ideal pH range of nutrient solutions in a hydroponic set-up should be somewhere between 5.6 and 6.2. pH levels can easily be controlled with the help of either a pH up or pH down solution.

If your pH levels are outside the recommended range then your system is at a high risk of causing harm to your plants. At the very best the performance of your plants will suffer and at worst your plants will die, especially if they are left outside the optimum range for too long.

Both pH Up and PH Down are highly concentrated aggressive liquids and should be handled with extreme care.

pH Down

This pH Down solution contains phosphoric acid which will quickly and effectively act to reduce the pH of your nutrient solution. The formula consists of highly concentrated levels of phosphoric acid at 81%, which is more than many other pH Down products on the market.

pH Up

This pH Up solution contains potassium hydroxide at a concentration of 25%, which is again stronger than most other pH Up solutions on the market. This formula will act quickly to raise the pH of your nutrient solution back to an optimum level.

Health and safety

These solutions are highly concentrated aggressive liquids and the manufacturer recommends exercising the following precautions:

  • Wear gloves and eye protection when handling and administering
  • Store safely and keep out of reach of children

Important notice

pH Up and pH Down solutions can only be sent to mainland UK addresses. We cannot ship this product to any offshore destinations due to the International Maritime Dangerous Goods (IMDG) code. If you’re unsure about whether we can ship this product to your address then please give us a call on 0117 971 3000 to find out.

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