Liver flush without colon cleanse

I was just ready to get colon hydrotherepy when my Dr. diagnosed me with Diverticulitus. He says if I do it it could burst the diverticuli and cause more problems. I'm not sure if he's right or not, but don't want to chance it.
1- Is there another way to Colon Cleanse without the colonic irrigation?
2- Is it absolutely necessary to Colon Cleanse before and after the flush?
3- Will doing the flush effect the diverticuli as well? Tweet