Dylan5359
Aquarium Advice Addict
- Joined
- Jan 31, 2011
- Messages
- 2,063
I'm going to purchase a RO/DI system in June (hopefully). I don't really understand how it works. Does this mix SW too? Or does it just purify tap water, and then I mix salt myself? If someone could explain the replacements I would have to buy of stuff every month or so too that would be great. (like carbon or something) Thanks.