Just a bit of advice... put your plants on the risers, not the trays. You don’t want them sitting in water... they need airflow underneath the pots.
Root rot kills more flowers before harvest than a lack of water IMO! I had my flower room girls on the ground and they never seemd to dry out. I placed them on a pallet riser gettng them about 8" up and they dry out more often and the buds seems happier. I know the roots are!