Once it's done, nobody will see it. Whatever line will be buried 6'+ and covered w 2" blueboard prior to backfill. It is to fill horse waterer. My wife is tired of me making her haul 125' of garden hose outside in the winter.
I'll need to T in to an existing line in the crawlspace (heated) out to the hydrant (buried valve). No need to blow out. The water will be run every 2-3 days to fill tank. HT is just to have available just in case. Doubtful It will freeze.
Still open to ideas. Thanks.