Use a pH tester to gauge whether your water requires an adjustment. Nulife pH Down Solution will allow you to decrease your pH level as required.
Approx 4mls per 100 litres of water will lower the pH level by one unit (ie. from 6 to 5). It is recommended to only use small amounts on your first time (i.e. one drop at a time), test the pH level after each addition of concentrate to gain an understanding on how it reacts to the water/nutrient formula. You do not want to lower the pH so much that you need pH up.
It is not recommended to use both pH Down and pH Up in the same solution as this will affect any pre buffered medium. Always take care when using this product, wear gloves and avoid contact with skin/eyes.
