Wow, just like my trench. My contractor used a pump almost continously to keep the water from going above their boots. But my trench was only 5 feet deep and they used parallel lines not slinky. Also had a nice big rock layer where watter just poured from and about six springs we could identify. According to my contractor (and my reasearch) My 3ton Envision with three parallel 3/4" x 300' loops has the performance of a vertical loop.
Say hello to phenominal efficiency. Congratulations
What size and brand HP did you get? What part of the country are you located in?
My trench took a good year to settle. Mine went online mid Dec and a month or two later I had about a 28F entering water temp. That is the only time it had been below freezing. My entering water temp has not droped below 35 or past 80 in the summer since the first year.