Hi Gary, not much more information to share, just going on what the doctors told me. How a normal bowel works, it must create bacteria to aid in digestion? It's the only explanation I was given about how poo was getting into my kidneys. I had lots of tests, thinking something inside was broken, and causing cross contamination. When changing both my bags, I always do the wee bag first, then the poo bag, so as not to get any poo on my wee stoma from cross contamination, that's all they told me about in hospital after my surgery. I think your right about assuming that if you drink enough fluids, it does keep the ileum flushed out. My biggest problem is, I don't drink enough fluids. Just can't seem to get that water in me. I drink lots of other things, tea, coffee, juice, but not much water. It will definately help if you drink a recommended amount of water daily. Also, taking Cranberry capsules can help maintain a healthy urinary tract. It's always a good idea to have antibiotics on hand, but they have to be the right one's. It's important to diagnose which bacteria is causing the infection, with a urine test, so the doctor can prescribe the correct antibiotic. My bacteria seems to be the same one each time. There are four types, I believe. Mine doesn't change. But after about 8 months or so, I might get an infection, because the bacteria become amuned to the antibiotic. Then it's time to hit the super strong antibiotics, 1000mg, twice a day for two weeks. Then back to my daily 250mg antibiotic. It's difficult to get information about all this, took me some years to figure out what was going on with me, as I wasn't told anything about possible UTI infections. As well as my regular doctor, I also have a urologists and bowel specialist that I can see when needed. They are the guys that have the answers. There are other alternative, or herbal remedies to help keep a healthy urinary tract, I tried some but didn't work for me, should be some information about that on the internet. Take care, and drink as much water as you can.