Invested? I wouldn't call it investment for the same reason one doesn't invest in going on a date - or do they??? (The plot thickens); I would call it a hobby.
I spent a lot - I would venture that in today's money I have more than 1000euros total. The problem was that at first I didn't know what was possible, then I didn't know what I wanted, then I didn't know if it was safe enough.
Today I am using a totally custom setup simply because it is what works best for me.
Among the things that I tried were:
- german enema setup featuring a long thin "colon tube" made of semi-rigid plastic, 25cm long. Worked wonders but I thought it is highly unsafe
- german dbc tips - nice, but prone to breakage
- a plethora of bags - from plastic to silicone.
- tubing from rubber to silicone
- a huge range of tips (from butt plug style to thicker & shorter colon tubes)
- real colon tubes - not used now.
- large foley caths used as short colon tubes - an experiment really
- pressurized enema dispenser (don't need to hang the bag) - a stepping stone to
- a custom "automatic" enema delivery machine (set up the volume and max flow) and it maintans pressure under a "safe" limit and delivers the volume (cramps cause back pressure, so it automatically stops until they pass) - good idea but way too complex. I am not into bondage, otherwise it would've been great.
- containers from 1l to 5l
- etc.
I hate reminding myself how much I spent for each... But a good trip down memory lane...