My water system album can be found at the following link:
Aquarium Advice - Aquarium Forum Community - dwayne.aycock's Album: My Tap Water Filtration System
I made the system from various parts from Home Depot and lowes. I built the system a little at a time, and added / removed parts based on water tests for TDS, conductivits, PH, ammonia / chloramines, algae and temp. This system is outside in a shaded area of my yard. I break the system dowm every 6 months and do a good scrubbing and filter maintenance. To make sure I have NO little nasties in the tank, I run the water through a UV sterilizer. When the water comes out of the storage barrel, it is 92+ degrees. I have to let it cool about 8 degrees before adding to my tank.
Good Luck!
D