If it was after the first use, you might actually have a blockage; I have seen installers throw pipes in a dirt trench before connecting them and all sorts of debris gets in there. In my case a rock got wedged in the line and the rest of the junk built up behind it. You might be able to get a 250ft electrical fish tape and run it through the line and see if you hit anything.
Just a idea.
simfreak101 t1_izf2qkj wrote
Reply to Water line from house to barn lost pressure! Please help!? by Castle_33_
If it was after the first use, you might actually have a blockage; I have seen installers throw pipes in a dirt trench before connecting them and all sorts of debris gets in there. In my case a rock got wedged in the line and the rest of the junk built up behind it. You might be able to get a 250ft electrical fish tape and run it through the line and see if you hit anything. Just a idea.