25 hours, an overnight sleep while worrying about a hose disconnect or leak in my room, and 100 gallons later Im about 10-15 gallons short before I can turn the heaters on, add salt, pH buffer and be ready for live rock.
Im just glad I got the 75-100gpd unit instead of buying the kent 25 gpd unit..
If anyone is in the market for a RO or RO/DI unit the place I bought mine from is a spectacular company and highly reccomended.
If you need one I got mine (a 75-100gpd depending on water conditions for 130 shipped! great deals.)