Satorsanswered grow question 6 hours ago Hi,
High salt concentration: The high EC of the drainage water could be due to a high concentration of salts. This could be caused by over-fertilization, using water with a high salt content, or growing in a medium with a high salt content.
Nutrient imbalance: An imbalance of nutrients can also cause high EC in drainage water. For example, if the plant is deficient in a certain nutrient, it may not be able to absorb other nutrients properly.
Root problems: If the roots are damaged or unhealthy, they may not be able to absorb water and nutrients properly. This can lead to high EC in drainage water.
To determine the cause of the high EC in the drainage water, you will need to test the water and soil for salt content and nutrient levels. You may also want to check the roots for damage.
Good luck buddy.