This section of the book is from the "How and When to Be Your Own Doctor" book, by Dr. Isabelle A. Moser with Steve Solomon, published in 1997.
Enemas have been medically out of favor for a long time. Most people have never had one. So here are simple directions to self-administer an effective enema series.
The enema bag you select is important. It must hold at least two quarts and be rapidly refillable. The best American-made brand is made of rubber with about five feet of rubber hose ending in one of two different white hard plastic insertion tips. The bag is designed for either enemas or vaginal douches. It hangs from a detachable plastic "S" hook. When filled to the brim it holds exactly one-half gallon. The maker of this bag offers another model that costs about a dollar more and also functions as a hot water bottle. A good comforter it may make, but the dual purpose construction makes the bag very awkward to rapidly refill. I recommend the inexpensive model.
The plastic insertion tips vary somewhat. The straight tubular tip is intended for enemas; the flared vaginal douche tip can be useful for enemas too, in that it somewhat restrains unintentional expulsion of the nozzle while filling the colon. However, its four small holes do not allow a very rapid rate of flow.
To give yourself an enema, completely fill the bag with tepid water that does not exceed body temperature. The rectum is surprisingly sensitive to heat and you will flinch at temperatures only a degree or two higher than 98 Fahrenheit. Cooler water is no problem; some find the cold stimulating and invigorating. Fasters having difficulty staying warm should be wary of cold water enemas. These can drop core body temperature below the point of comfort.
Make sure the flow clamp on the tube is tightly shut and located a few inches up the tube from the nozzle. Hang the filled bag from a clothes or towel hook, shower nozzle, curtain rod, or other convenient spot about four to five feet above the bathroom floor or tub bottom. The higher the bag the greater the water pressure and speed of filling. But too much pressure can also be uncomfortable. You may have to experiment a bit with this.
Various body positions are possible for filling the colon. None is correct or necessarily more effective than another. Experiment and find the one you prefer. Some fill their colon kneeling and bending forward in the bathtub or shower because there will likely be small dribbles of water leaking from around the nozzle. Usually these leaks do not contain fecal matter. Others prefer to use the bathroom floor. For the bony, a little padding in the form of a folded towel under knees and elbows may make the process more comfortable. You may kneel and bend over while placing your elbows or hands on the floor, reach behind yourself and insert the nozzle. You may also lie on your back or on your side. Some think the left side is preferable because the colon attaches to the rectum on the left side of the body, ascends up the left side of the abdomen to a line almost as high as the solar plexus, then transverses the body to the right side where it descends again on the right almost to the groin. The small intestine attaches to the colon near its lower-right extremity. In fact these are the correct names given for the parts of the colon: Ascending, Descending and Transverse Colon along with the Sigmoid Colon or Rectum at the exit end.
As you become more expert at filling your colon with water you will begin to become aware of its location by the weight, pressure and sometimes temperature of the water you're injecting. You will come to know how much of the colon has been filled by feel. You will also become aware of peristalsis as the water is evacuated vigorously and discover that sensations from a colon hard at work, though a bit uncomfortable, are not necessarily pain.
Insertion of the nozzle is sometimes eased with a little lubricant. A bit of soap or KY jelly is commonly used. If the nozzle can be inserted without lubricant it will have less tendency to slip out. However, do not tear or damage the anus by avoiding necessary lubrication. After insertion, grip the clamp with one hand and open it. The flow rate can be controlled with this clamp. Keeping a hand on the clamp also prevents the nozzle from being expelled.
Water will begin flowing into the colon. Your goal is to empty the entire bag into the colon before sensations of pressure or urgency to evacuate the water force you to remove the nozzle and head for the toilet. Relaxation of mind and body helps achieve this. You are very unlikely to achieve a half-gallon fill up on the first attempt. If painful pressure is experienced try closing the clamp for a moment to allow the water to begin working its way around the obstacle. Or, next time try hanging the bag lower, reducing its height above the body and thus lowering the water pressure. Or, try opening the clamp only partially. Or, try panting hard, so as to make the abdomen move rapidly in and out, sort of shaking the colon. This last technique is particularly good to get the water past a blockage of intestinal gas.
It is especially important for Americans, whose culture does not teach one to be tolerant of discomfort, to keep in mind that pain is the body's warning that actual damage is being done to tissues. Enemas can do no damage and pose no risk except to that rare individual with weak spots in the colon's wall from cancers. When an enema is momentarily perceived unpleasantly, the correct name for the experience is a sensation, not pain. You may have to work at increasing your tolerance for unpleasant sensations or it will take you a long time to achieve the goal of totally filling the colon with water. Be brave! And relax. A wise philosopher once said that it is a rough Universe in which only the tigers survive--and sometimes they have a hard time.
Eventually it will be time to remove the nozzle and evacuate the water. Either a blockage (usually fecal matter, an air bubble, or a tight 'U' turn in the colon, usually at either the splenetic, or hepatic flexures located right below the rib cage) will prevent further inflow (undesirable) or else the bag will completely empty (good!) or the sensation of bursting will no longer be tolerable. Go sit on the toilet and wait until all the water has passed. Then refill the bag and repeat the process. Each time you fill the colon it will allow more water to enter more easily with less unpleasantness. Fasters and cleansers should make at least three attempts at a complete fill-up each time they do an enema session.
Water and juice fasters will find that after the first few enemas, it will become very easy to inject the entire half-gallon of water. That is because there is little or no chime entering the colon. After a few days the entire colon will seem (this is incorrect) to be empty except when it is filled with water. This is the point to learn an advanced self-administered enema technique. An average colon empty of new food will usually hold about one gallon of water. That is average. A small colon might only hold 3/4 gallon, a large one might accept a gallon and a half, or even more. You'll need to learn to simultaneously refill the bag while injecting water, so as to achieve a complete irrigation of the whole colon. There are several possible methods. You might try placing a pitcher or half-gallon mason jar of tepid water next to the bag and after the bag has emptied the first time, stand up while holding the tube in the anus, refill the bag and then lie down again and continue filling. You might have an assistant do this for you. You might try hanging the bag from the shower head and direct a slow, continuous dribble of lukewarm water from the shower into the bag while you kneel or lie relaxed in the tub. This way the bag will never empty and you stop filling only when you feel fullness and pressure all the way back to the beginning of the ascending colon. Of course, hanging from a slowly running shower head the bag will probably overflow and you will get splashed and so will the bathroom floor when your wet body moves rapidly from the tub to the toilet. I've imagined making an enema bag from a two gallon plastic bucket with a small plastic hose barb glued into a hole drilled in the bottom or lower edge. If I were in the business of manufacturing enema bags I'd make them hold at least one gallon.
A word of caution to those folks who have a pattern of overdoing it, or tend to think that more is better. This is not true when it comes to colon cleansing. Do not make more than three attempts to fill and clean the colon with an enema bag. Usually the colon begins to protest and won't accept any more fill-ups. When having colonics on a colonic machine it is a good idea to continue until the water comes back reasonably clear for that session. It is not a good idea for a faster to have colonics that last more than three-quarters of an hour to an hour maximum, or it will be too tiring. Even non-fasters find colonics tiring. After all, the colon is basically a big muscle that has become very lazy on a low-fiber diet.
I've personally administered over five thousand colonics, taught several dozen fasters to self-administer their own and stood by while they gave themselves one until they were quite expert. In all that experience I've only seen one person have a seriously bad result. This was a suicidally depressed water faster that I (mistakenly) allowed to administer their own colonics with my machine. This person not only took daily colonics, but allowed water to flow through their colon for as long as two hours at a time. Perhaps they were trying to wash out their mind? After several weeks of this extreme excess, the faster became highly confused and disoriented due to a severe electrolyte imbalance. They had to be taken off water fasting immediately and recovered their mental clarity in a few days. The loss of blood electrolytes happened because during colonics there occurs a sort of low-grade very slow reverse osmosis.