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The normal here is also to bed in sand, did they say what the actual pressure at the road was? 700' is a long run. The only thing that will likely cause pressure drop is your garden hose, most other items in the house are pretty low flow. I used 1" poly on a 100' run and about 72psi at road regulated down to 50psi in house, 60psi for hose in the garage. The only thing that worries me is the fitting inside the house, that tube is quite slippery, I clamped and supported the tube near the fitting so it could not shift back.
Looking at a chart at 11GPM flow a 1" pipe will have about 21psi pressure drop over 700'
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Last edited by 908/930; 10-24-2021 at 12:07 PM..
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