First off, I want to make it clear that I am a complete pool rookie!

And I may be out of line responding... But I did install an Intex 15' X 48" pool with Intex 1600 gpm pump and SWCG in June. I never plugged in the copper ionizer and have just left the connections hanging. I have had no issues with this.

And thanks to this forum and the K-2006 test kit my water has been perfect!