Brew 4 scoops to one full pot of coffee (usually holds 2 quarts) of an organic or low acidic blend, Starbucks "Veranda" blend works quite nicely **DO NOT THROW OUT THE GROUNDS!**.
Let it cool or add some ice cubes if you want it to cool quickly. While it's cooling, add one tablespoon of Baking Soda and one tablespoon of Salt. Mix it well and then pour half of the pot (one quart) into your enema bag. Take it slowly and hold it for at least 20 mins. Once you're done expelling, get up and re-brew the old grounds with another full pot. Once the pot is done brewing the second pot of coffee (which will look VERY weak) bring it to your enema site and cool it accordingly. Now go to the toilet and expel the tiny last bit of gunk that you had from the first enema.
Now take the last quart of the first brew and hold that for 20 mins. It should be much easier the second time around as you have already gotten rid of a lot of crud in your system.
Once you have completely finished expeling the second quart of the first batch, go onto taking the full 2 quarts of the second batch of coffee, again, make sure to add one tablespoon of baking soda and one tablespoon of salt.
During the entire procedure you should drink at least one bottle of Gatorade to replenish your electrolytes.
Once you are done insert a butt plug to stimulate your ass into releasing the last little bits and then enjoy a nice clean ass without the tired feeling of having done a deep enema session.