RO/DI water ??

[tlok]

I just received a Maxima Hi-S 35gpd RO/DI unit. I'm excited to get it up and running. I plan to use it for topping of my tank, and for mixing my saltwater for water changes.
Question: Do I need to add anything, or do anything after the water is run through the unit prior to putting it into my tank???

 

[plum70rt]

After you make the water its ready to use, I suggest getting a TDS meter, total dissolved soilds, which will let you know how good the water is and when its time to change the filters,

 

[saltywashington]

According to the instructions that came with my Maxima filter you are supposed to run like ten gallons of product water before you use it and I would suggest that you double it.