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simfreak101 t1_izf2qkj wrote

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.

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Killarkittens t1_izg6512 wrote

This was also my first thought. I was fixing my sprinklers this summer and was having a hell of a time keeping the dirt out of the lines. It wouldn't take a very big rock or a couple pebbles to create a block at the down stream valve

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squarebacksteve t1_izgzj2s wrote

Yea, agreed it's maybe a blockage. The line would have to have completely separated to have lost pressure. You wouldn't notice a pressure drop from anything other than a massive leak.

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Castle_33_ OP t1_izh9lft wrote

We are still getting water through the line, but when the valve is turned off at the barn the pressure falls when it should remain. I’m starting to think the ground shifted and put pressure on a splice

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