There are other things you need to do to get a thorough cleanout.
The hardest thing is to clear the small intesti
The stomach releases part of it's content to the small intestine about every 15 minutes, and the small intestine releases part of it's content into the large intestine, but almost never in sync. If they are in sync it's just random chance!
The best way to clear the stomach is by fasting. that may not be fast but it IS very safe.
Forced vomiting is unsafe in several ways and should not be used EVER!!!
The ways I have tried with some success to clean myself thoroughly are
1) When tsking enemas till clear, as I expel I also take Milk of Magnesia as follows:
Between blasts of the first round. double the label dose. Between blasts of the second round, 1-1/2 times the label dose. Third round the label dose
any additional rounds 1/2 the label dose.
Another technique is to do something similar with Miralax.
I average 1 round of enemas per hour but that is far from set in stone. It can be as little as 40 minutes or as much as 2 hours it's when my body tells me it's ready.
A third technique is to get to a clear return, then wait about an hour and drink a bottle of magnesium citrate.
I have learned over the years a technique that is about 80% reliable for keeping it down.
Maybe the reason it is not 100% may be that I can remember the Magnesium Citrate that was much more heavily flavored and sickly sweet than it is today.
Fleet is a saline laxative and it's easy to overdose