I am helping my uncle replace a very old ¾ hp jet pump in his house he just bought. the old jet pump has been sitting for a bout a year not being used and is not working now. The old jet pump has 1 ½” and 1 ¼” in and out. And the same going out and down the well. The new pump is 1 ¼” and 1”. will the new pump work with the bigger lines or do you have to replace the lines to 1 and 1 ¼ out and down the well…Thanks