Karen Fahey is excellent! I had several colonics from her while I was in grad school at SMU University and she was close to campus.
Karen is at 3404 Greenville Ave, telephone 972-991-5199. It's been a while, but she had a closed system, and if I recall correctly, it was a Hydrosan. She is in a nice quiet neighborhood, and if you drive, you can park right in front of her house and walk up the sidewalk to the front door.
Just last year I referred her to the daughter of one of my clients, who then scheduled a session with Karen and had nothing but praise for her.