I'll be 61 in a few weeks, and I take 3 to 4 enemas a week. I know I don't need that many but I feel better when I do, and have been doing this for over 40 years.
I use 1 Tbs of sea salt and baking soda to each quart of warm water. I also use a 30" Fr. 32 Colon tube to place to enema into my transverse colon.
Stay healthy, and do your enemas.