I just came across this as well. I have multiple springs on my property. The closest to my dwelling is about 1000ft. I ran 1” line, to a 1500 gallon underground tank. Refills by gravity at 4 gpm!!!
Everyone thought I was crazy, I’ve been trying to research if anyone uses spring houses anymore. And came across this forum. I haven’t protected spring with a “house/shed” yet, so I’m not drinking the water but using it for non sanitary needs. Glad to share info and learn from anyone!!!