Look @ in-line UV sterilizers for garden ponds.

But I gotta warn ya, yer lookin at nute imbalances if you don't change the res- doser won't fix that.
rhizome Reviewed by rhizome on . Keeping recirculating DWC sterile Hey folks! I've grown with a DWC setup for years...and am wanting to design a new system with one of those intellidose gadgets to keep everything at optimal levels, ideally so I can have a setup that I don't have to change the water(i.e. set it up and come back in 3 months and harvest). Well, maybe change the water to flush in the middle of the grow and of course at the end. The question I have is there any way to keep the water sterile to prevent any kind of infection setting in? Can I Rating: 5