the roots obstruct the drainage of the system and the water does not descend into the tank easily and the rockwools and roots are flooded, this causes the increase of ph in the reservoir and in the rockwools.
this week I hope to solve the problem, for the moment I use a timer for the water pump (15 on 30 off).
update:
I solved the problem of the roots on the drain by folding the mat on itself with the whole pack of roots descended into the tub, a little rough but functional.
but unfortunately I lost almost a week to flush the girls due to the flooding of the root zone
I have to start halving the doses of nutrients again ...
... it was a bad week but maybe I learned something 🍀
water pump restored 24/24h
Light lifted up from 50 to 90cm
Ppfd 1300 > 1000