[ShelaVenna]

Sorry. I thought the pumps you built had sensors. Interesting. Like I said, pumps that don’t have sensors, but that cycle on and off quickly, releasing pressure, can also work. I hope that made sense. I know I tend to use the wrong terminology. If you can make a pump that cycles on and off and can pump for many, many hours at a time, you’ll be filling the same niche as the Evebra. The Evebra pump is extremely unreliable according to people that have tried it, so there’s definitely room for a better alternative. I know you seem to favor higher pressure pumping, but that style of pumping doesn’t really require a machine, and not many people will be willing to invest a lot of money in something they don’t need. People who choose to pump for many, many hours a day would benefit the most from an electric pump, and be more motivated to spend a lot of money on it. Of course, you don’t have to do any of this. I know this is just a hobby for you, and if you’re not interested in making that style of pump, don’t feel bad.