It's a learning curve...
- Aug 23, 2015
- Reaction score
- Bourne, Lincolnshire, UK
Estimated TDS (126ppm) from EC is not really the actual TDS, so it is just a rough approximation without knowing how many ml of OrchidFocus per liter is used (it is difficult to understand what "half" strength means as Ray always points out).
For the record and not sure if relevant as most of what naoki said in above post went straight over my head at 01:15 this morning but I'm using 5ml per 4l of water (half strength according to OrchidFocus label).