I have my girls in a 28 site drip system (have only 24 plants though). They are in a rockwool slab medium. I am just starting week 6 today. My question is about drip times.
I have the pump going 4 times a day (every 3 hours) for 5 minutes. The slabs seem moist but not saturated. The leaves do not seem droopy like they have been overwatered. I would just like to know if someone has a similar type system and medium, and what their times are.
Also, I have read that it is good to flush the medium a few times because salts can get locked up in the rockwool. I change the res every week (25 gallon) and like WH, I take half the res water out in the middle of the week and put fresh water in with fresh ferts. I do a small flush at the end of week 5 using just water, cal-mag, sweet, 5 ml of LK, and snowstorm but do I need to flush again sooner or, with keeping up on a fresh res, am i okay?
I have also looked at the cocoa slabs that came out. Are these better then the rockwool that I am using?
and one more question...My res has a heater and stays at 69 degrees. my temps get to 65 at night. Should I have a cycle going in the middle of the night to keep the root zone warm or are they okay at 65?

Thanks
JeffersonBud Reviewed by JeffersonBud on . Q about drip system I have my girls in a 28 site drip system (have only 24 plants though). They are in a rockwool slab medium. I am just starting week 6 today. My question is about drip times. I have the pump going 4 times a day (every 3 hours) for 5 minutes. The slabs seem moist but not saturated. The leaves do not seem droopy like they have been overwatered. I would just like to know if someone has a similar type system and medium, and what their times are. Also, I have read that it is good to flush the Rating: 5