I have currently become interested in buying an aerator. I do not have a big need for my business yet, but personally I want to get one for my own place. My best friend is looking into getting also. We have talked about going in halves for our own personal use. The only ones I have ever seen in stores are at Lowes and Home Depot. Are these effective or do I need to buy a large commecial version. If so, where do I need to look for one.