I had colonics in both systems, both have their pross and consss
In the closed system, the water seems to go deeper and higher, so it cleans bether.
I do feel some improvement in a general way in the whole well bying, specially asociated with the diet recomended by them.
The Technician that I have been going lately has been very nice. She does a good colon massage as the water does its work deeper and deeper, and... yes I do get hard almost every time.
After few visits and after becoming more familiar with her, she once ofered if I wanted to get a relief to my "tenssion". She sayd that erection was normal as the water builds pressure on the prostate and etc...
After my positive answer, she did help with her engloved hand (did not have to work too long).
Now, once in a while, while giving the massage, she gets little lower... "accidental" brushes to my enjoyment...
The cost is little high but it is whort it