Where to get RO water?

[wartooth1]

So I've been making the mistake of keeping a few spare gallons of clean saltwater on hand to top off the tank whenever water evaporates. Thankfully by the time I realized my error, the SG in my water remained at 1.024... anyway, since I've never actually seen RO water (or maybe I have and just didn't realize it) can someone recommend a brand I can go get and keep in my tank cabinet for topping off evaporated water?
I have a feeling its something as simple as a jug of Dasani, Aquafena, or Arrowhead water but I'm not sure lol.

 

[meowzer]

Most Walmarts have an ro machine where you can fill you own jugs ..or just look in the bottled water section....you can buy gallons there too

 

[red tiger]

They also sell units for about $130 that you can install in your home but that water from the machines that cost about 30 cents a gallon work well too!
In my opinion, the unit takes the hassle from making trips to refill them. You should look into it as a long term solution.

 

[1guydude]

Look for reverse osmosis!

 

[swisswiss]

+1 red tiger