Yeah don't use the fluid that comes inside the enema bottle when you buy it! That stuff is nasty! Squirt it down the sink and replace it with pure water if you're going to do an enema to prepare for ass play or deep rimming.
DATO is just one of the many reasons I like to take a shower or share a bath before play time. Good Clean Hygiene just makes the whole experience better for both parties. I'm not a clean freak, but the last thing I want to hear about is "the guy had smelly balls" Yikes that has got to be a mood killer.