So im just a highs guy, shove water through her. she's doing well and i haven't had problems, but i was told it shalll be done! **But lookin at shit and listenin to people.. i think a flushing agent is NEEDED, not just recommended. When does nute lock happen? cause im just using distilled water. not watchin PH, tho i know kinda checked...but more hope, its at neutral. o0o and she's sexy and will keep me medicated.