Basic enema advice

Hi, apologies for what may be an overly simple query. I have been trying enema's for non medical reasons for a few months. Bulb enemas and larger volume bag enemas. I typically spend an hour or so on this and use probably about 2 litres of water. I am a little depressed that i often feel "less clean" after the enema than before in the sense that i am still losing dirty water (in a diarhoea sense) when i finish and perhaps for an hour aftrwards. I am not sure if this is because i am using too little water, need to spend longer on this or need to hold the water longer but any advice hugely welcome. I should say i have a healty diet and am a healthy and active 45 yr old male Tweet