agree, don't need a long hose.
I found the following method works well for me. Using a hose with any tip, lye on all fours, heads down, ass up, and use very very slow flow of water (this is very important), hold the tip of the hose in ass. i can feel water slowly fill into descending colon, and starting to feel the involuntary movement of the descending colon. that feeling will go away after couple of waves, than come back, listen to your body and until you can't take it anymore, stand up relax and walk around for few meters, until the need to expel became unstoppable. now expel, dont push out, just relax colon, relax rectum and relax hole, let the body do it's work, lot's of nasties will come out from descending colon. i usually do this twice, with few minutes rest in between. then do some short wash only for rectum.