The solution used in a cleansing enema is often plain water, salt water, soapsuds, mild acidic solution (vinegar or lemon juice), or any solution to enhance the cleansing of the bowels.
Trying to take a full 2 quarts at first is usually impossible or very difficult. So take in a much as you can then evacuate. When done with evacuating, take another enema again flowing in as much as you can then evacuating. You repeat this process until you obtain the desired result.
After the cleansing enemas you may take a coffee enema or a probiotic enema or any other medicated enema.
For more detailed information see my Blog under "M" My challenge by ProPaul