There's a big difference between cleaning out for anal sex and a deep cleansing enema. As previous poster mentioned, a high volume, deep clean can create a messy situation. Either you do a deep clean right and clean out completely to the cecum or just flush the colon just prior to sex. If you do the first, it's going to take time and one session isn't going to cut it as you're going to have to slowly work the water upwards, rinse and repeat. Sure you're going to be clean, it's going to take time to get out all the trapped water, and you're going to be worn out, probably sore, or not in the mood. Watch some behind the scenes vids of pros. Notice they are either using bulbs, empty fleet bottles, or shower mounted nozzles. Sometimes a bag. But notice they are standing or sitting and it's bulb fulls or just enough to fill the colong and expell several times until clean. They're good for a few hours until more crap comes down. Also notice that they're dialating afterwards with plugs or toys in a non rushed almost socializing matter. Taking their mind off their butt is a good way to let the acclimation occur. There's two sphincters. Outer and inner. The inner one needs to be dialated to accept a large penis or toy and also can hold back trapped water. Shower types are the most convenient or a disposable empty fleet. Cleaning,disinfecting a bag or bulb and/or tubing can be a labourous effort with backflow involved. Another concern with high volume cleansings is unless you add salt to make it an isotonic saline solution, you're going to absorb a lot of water. That's not good, especially if you might have hypertension or cardiac problems. Small volume repeated colon flushes with plain water minimize the water absorption. In short. If you want a bowel cleanse which isn't a bad thing every once in a while, certainly do a series of high volume enemas and invest in a soft colon or rectal tube and do it right. It essentially becomes the equivalent of a colonic. Depending on the person, initally you feel drained, but the payoff is feeling much more alert the next few days. My wife experiences that. No question it's therapeutic along with a massage, scented candles, and a warm bath afterwards, but no sex or anything sexual. Drink gatoraid or some other electrolyte replacement drink afterwards. If you just want to prep for sex, keep it simple in small flushes and stay vertical the entire time either sitting or standing. You'll save yourself a lot of time and potential mess later.