Making our own Seltzer

We just finished making our home made Seltzer water :)...here is how it works and why it is better for us to have this set up instead of the pre-manufactured ones with the tiny cartridges! After all...we live on a boat and need to be self sufficient :)
http://www.popsci.com/diy/article/2012-06/how-make-your-own-home-carbonation-system
We got the whole set up from The Keg Outlet on the internet, a home brewing equipment company we highly recommend...delivery was fast and the customer service outstanding!