RO water confusion!?!?!

is your water going thru a water softener treatment?

if so you may want to bypass the softener and use RO to mix water..

you'll need to get readings on the source water, kh/gh pH etc and use RO in proper proportion to get the desired results
 
I agree^

I would experiment with cutting your tap water (pure source, not treated or softened) with RO. Ideally it will be a simple dilution.

While starting with just RO and reconstituting could theoretically be more consistent over the long run, using your tap will inevitably cut down costs since you wont need as much RO for volume or the chemicals to add constituents back. Assuming you don't see large swings in your source water it may be good enough.
 
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