ro system

[dparson22]

I have a 240g Long w/55g sump, 75g and 25g w/20g sump. That said I was looking for a ro system. I found one here:
http://www.costco.com/Browse/Product.aspx?Prodid=11111638&whse=BC&topnav=&browse=
It is supposed to be zero waste. I didn't like the fact I have to waste about 4g for 1g clean water. I know it has to be better than just the treated tap water that I have been using. I have been having alot of algae blooms and I think this would solve this problem.

Thanks

David