subwax
Well-Known Member
I run a flood and drain setup with a res, one control pot and 4 grow pots. For the most part, it really is a walk in the park. Easy as you like. The exception for me is the measuring of the EC. I have both a Blue Lab PH Controller as well as a Blue Lab Guardian, so I am always closely monitoring and recording my statistics. The one thing I struggle with is EC, and the reason is - it is always rising. I try and try to get that magic sweet spot, where the PH and ED is static, with water level dropping. For the most part, the EC is usually rising. Take now, for instance - I am at week 7 of a 4 plant 7 week grow. My EC is down to 1.4 / PPM is 1000. currently. My tap water EC, once filtered is around 400 ppm / EC 0.6. I flushed a few weeks ago, and the continued its rise, even with clean water. I change my res every 7 days.
I haver read that with static water uptake, and figures rising, an increase in EC would be needed. In all other cases, increasing EC means a drop is needed. My water levels are dropping, so if anything, I'm supposed to drop the EC.
The plants are growing well - might have been a bit heavy handed with PK earlier in the grow, but plants showed me to back off.
Anyone else have issues like this?
I haver read that with static water uptake, and figures rising, an increase in EC would be needed. In all other cases, increasing EC means a drop is needed. My water levels are dropping, so if anything, I'm supposed to drop the EC.
The plants are growing well - might have been a bit heavy handed with PK earlier in the grow, but plants showed me to back off.
Anyone else have issues like this?