Most people are familiar with pH as an indicator of how acid or alkaline a solution is. The pH scale ranges from 0 pH (very acidic) to 14 pH (highly alkaline). Pure water, at 7 pH, is neutral--neither acidic nor alkaline. Maintaining proper pH is critical, whether growing in soil or hydroponically. Plants absorb each nutrient element only within a certain pH range, and because this range is different for different nutrients, there is only a relatively small pH range in which all nutrients are available.
Strips used: (pH 5 - 10). These indicate pH to the nearest 0.5 units. A pH meter gives greater precision but pH strips are adequate and easy to use, not to mention, strips can be used only once.
Calibration is a process that allows the digital pH meter to acknowledge if any piece of testing equipment is performing to its up most of use and discharges any problems that it encounters.
Strips used: (pH 5 - 10). These indicate pH to the nearest 0.5 units. A pH meter gives greater precision but pH strips are adequate and easy to use, not to mention, strips can be used only once.
Calibration is a process that allows the digital pH meter to acknowledge if any piece of testing equipment is performing to its up most of use and discharges any problems that it encounters.