A little off subject, but since you are talking of hoses, how about the valve? I recently purchased a couple of valves, one is made by a company called "Bard." The trademark is Flip-Flo, it is advertised as a urinary drainage catheter valve, fairly cheap. I found the part number on the package, BFF20, and after a quick search, found several. I bought mine from a medical supply I found on ebay, a company that sold latex tubing and other medical appliances.
Another source I found, is a replacement silicon enema tube, including the check valve, adjustable valve, and a section of silicon hose with a double barb adaptor to the bag. I bought the set for $15 on amazon, the description as follows: BTW, the complete kit with silicon enema bag was only about $10 more.
Premium Enema™ STAINLESS STEEL ENEMA BUCKET KIT - Suitable For Home, Water & Coffee Colon Cleansing - 2 Quart - Satisfaction Guaranteed (Replacement Hose)
Sold by: Profusion Health
The nice thing about these valves, you can adjust the flow to whatever you want, but you will miss the click sound, unless you keep the old stopcock as a backup.
the hoseman1