I guess im not so concerned with filling my tank as it is already full I just need it foe water changes. As far as a holding tank does it have to be under pressure or will a simple water holding container work? Does RO water go bad if not sealed?
They sell RO units at my lfs and the cheapest is $100. So its not TOO bad. However, I dont remember what brand or how many gpd it produces "/. But I can go check it out the next time I go to the store.
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