My drain fill is pretty late on a Thursday. If I was to do it a few hours before will It effect anything?
Should be ok as long as it’s not transition from seedling to veg or flowering to flush.
You can certainly drain/fill at any time during the day of your notification. You can even get away with a day early or a day late. Just be careful you don’t run out of water in the later stages of growth. Plants love consistency and one of the advantages to DWC is the constant availability of food.
Thanks guys, I will be doing it like 3 hours before.!