Hey bizzy-

If you are 5 weeks in, I am guessing you mean, changing over the nutes and not flushing... Flushing is done in the very last weeks before you harvest the plant. It is just giving the plant plain old water to rid the roots of the chemicals and not making your smoke taste nasty. If you meant changing the nutes and putting new nutes with new water in, then yes, I would clean out your system at least every 2 weeks. I usually do it every Sunday, but that is just me...

Good luck...
willybblue Reviewed by willybblue on . Flushing Bubbler Hrdro System I have a hydro bubbler system you don't have to flush the system do you. I have not done that since I started 5 weeks ago and plants growing inch or more a day. I thought since the roots are sitting in water you did not have to flush them or do I not know what your guys are talking about. Is flushing changing the water if that called flushing I have done that one since start. I thought flushing them meant to flush them from top down and I didn't think that you had to do that since the roots at Rating: 5