A lot has been written on the subject of cleaning an enema bag. Valerie_cct, who has a lot of experience with enemas and colonics has written the following:
”There are probably many different opinions on the best way to clean your enema bag, but if it is just you using it, and if you always hang it to drip dry afterwards somewhere where there is light and air can circulate, I don't think you have to worry about cleaning it more than 3-4 times a year.
On the other hand, if an enema bag is also used by your husband or partner, and possibly other family members, then a great deal more attention to cleaning the bag regularly is required. Also, if you typically use the bag and afterwards store it away in a drawer or dark closet on it's side before it has thoroughly dried, then you are asking for mold to grow in the bag and throughout the tubing.
I encourage others reading this to post their comments, but the way I clean my own personal combination syringe at home (I also have a 2000ml stainless steel enema can) is to fill it with a solution of 50% water and 50% plain clorox bleach and hang it so it flows into the bathtub until it is half empty. Then I clamp the shutoff (placed near the end of the tubing by the rectal attachment), and let it just hang for a couple of hours. Then, with the bag hanging low above the tub, and the shutoff opened just enough to allow the solution to slowly flow out, allow the bag to empty.
Then I fill the bag with plain tap water and empty it, and then refill it with tapwater, attach the tubing, and hang the bag above the tub until it empties. Then with the bag hanging upside down on the back of the bathroom door, and the tubing looped over it, I try to allow it to throughly dry before using again, which can take 3-5 days depending on the humidity. Before using again for an enema I rinse with the tubing attached until the bag empties through the tubing. Never use your enema bag or tubing for douching. You should have completely separate equipment for this purpose.
Ideally, each family member should have their own personal enema bag not shared with others, but in many family situations this is not feasible. At the minimum, you and your partner should have individual equipment, and if there are children or other family members who need enemas on a frequent basis, then there should be at least a third enema bag in the family for them. However, if other family members only require occasional enemas, you might consider disposable large volume (1500 ml) bag enema units, such as those by Fleet. Your pharmacy can order them for you, and they are less than $4 each.
Again, I encourage comments and critique on this topic from other readers on this forum.