We have well water that settles out great quantities of iron, essentially making the water useless for anything but toilet flushing. It seemed to good to be true that this filter system could resolve this problem but at the price point versus the local water system installers quote of 6k, we took the chance and are glad we did. It does not take out all of the sulfur smell but eliminates the iron. It auto back-flushes and has not required any maintainence after many months. The backflush does put out quite a bit of water so you need somewhere for it to go. Installation was basic homeowner plumbing skill level because I am a basic homeowner skill level plumber.