We just did this very thing. And just as FYI, T.S.C. still sells 115 volt pumps...I know because we put one in last year. We bought our house last Aug. and had all the wiring replaced. They had a 60 amp service with the breaker panel on the back porch (all the old houses around here are wired up the exact same way! And everyone's breaker panel is on their porch). We had everything replaced and had to replace the water line coming from the well to the house. The pump was about 10 years old, but hadn't been used in the last 3 or so years as no one was occupying the house. So, when we replaced the line, we went ahead and replaced the pump. Dh kicked aorund the idea of changing it to a 230, but went ahead and put in a 115. Our pump is hooked up to a small light on the milkhouse and the light comes on when the pump is running. Well, when the electricians *tested* the electric, dh looked out and the small lightbulb (like a nightlight bulb!) was glowin' like the sun! Luckily it tripped the breaker and didn't fry the pump, which was installed by dh only 2 weeks prior to this episode! So, long story short, our pump worked great until we had an electrical storm last weekend and it got zapped. Hallelujia, it was still under warranty!! So, dh decided to just go ahead and put in a 230.
So, that's our story
Good luck!
Shawna