Buying RO unit help me out
So I've been looking at getting an RO unit for a while now, and seeing very good units from a site for $100 I'm inclined to move on it.
Once its set up and putting out RO/DI water, how do I remineralize it? what do I use?
If using only RO/DI water in a tank, then can I use an inert substrate like EC and put in alder cones to bring the ph down a bit? or is this to unpredictable of a swing?