My bucket looks most similar to Ansino International enema bucket. There is also Gentle -L-Care and Pure Joy Planet that look like they have a blue comfort tip. The idea is not to try to clean out your entire colon, just to clean out and rehydrate the area of the sigmoid/rectum where the notorious kink is. Of all the posters, I thought that you might be interested because of your frustration with laxatives. A lot of people are squeamish about enemas. This can be done sitting upright on the commode with the bucket sitting on the tank. I am so glad a friend told me about this and the gastro doc cleared its use as harmless. The worst that could happen is that you could be impatient and injure your rectum. KY Jelly and experience will solve that. I am for what works with the least amount of side effects. Laxatives interfere with our digestion, especially fat soluble vitamins such as A, E, D and K.
I have to say that I also take one Pancreatin capsule from Allergy Research Group with each meal for better digestion. I also take 400 mg of magnesium citrate and one capsule of Life extension Daily Bowel maintenance (Bifidus probiotic) at bedtime with a glass of rice milk. Hope you get some benefit.