COVID Boredom Garden DWC

Bud sites are starting to form, I've been removing vegetation from the bottom but otherwise just kinda letting them do their thing. System is running flawlessly, I should have never tried with those 1" drains, that just wasn't enough. The roots occasionally creep into the sump tank but it's pretty easy to keep in check. The ph is dropping on me everyday it seems, same for the tds. When i checked it this morning tds had dropped to 175 from 450. Needless to say I'll be changing the water tonight, still wish I had more consistency there. Mild nute burn on one of the power plants but otherwise the ladies look pretty happy.