Questions about pumps

[moose mountain maple]

i have a couple of Gould pums 1.5 hp we use them to pump water out of out pond for irrigation. they are desinged for continous use. we have a 2.5 " line that goes into our pond about 55 feet from pump to pond then we have about 5 miles of pipe to irrigate our nursery. why cant one of these pumps be used to creat vacume in my sap lines. what info do i not know?

Adam

[Haynes Forest Products]

There water pumps and only create vacuum when they are full of water and small amounts of air/gas. They will over heat without the cooling water and the seals will wear out.