I used that to supply water, from my house, to my pool, 30 years ago, still stands strong. The Electric guy, even let me put it in their ditch, 50 yds to the pool house....
My last house was plumbed entirely in PEX and it was great. We even lost power once for a week in the middle of January and half the lines in the house froze up. Zero damage when they all thawed out again and no leaks.