Gregcoyote
Aquarium Advice Addict
I too am an engineer. RO/DI is pretty simple. Depending on the tank size, that will determine how fast your filters last.
The RO membrane usually lasts me a year (550 gallon system) with my carbon and course sediment filters lasting about 6 months. The DI material doesn't last very long and gets changed out as needed. These filters and chemicals can be found in bulk on line for about half of what it costs at the LFS.
The RO membrane usually lasts me a year (550 gallon system) with my carbon and course sediment filters lasting about 6 months. The DI material doesn't last very long and gets changed out as needed. These filters and chemicals can be found in bulk on line for about half of what it costs at the LFS.