<b>harryh</b> - you want to take care to deal with your particular situation. How much uphill are you pumping the water? Each foot of elevation reduces pressure by 0.43 psi. Pond water will contain particulate matter, and you will either have to strain it out, or select equipment that can handle the crud. At sub-30 psi, no sprinkler will give you more distance than a Rainbird Maxipaw, and they will handle crummy water. The Rainbird R-50 also handles pond water, and has unsurpassed coverage at low pressures. Depending on lawn area, elevation, and pump you select, you might do best by expecting less distance from the heads, and lay out the system accordingly.
There are two basic pumps you can use. Most generally useful is a shallow-well jet pump, which gives you higher pressures that most rotor heads need for longer spray distance. Most efficient, from a cost-to-run viewpoint, is a plain centrifugal pump, without any shallow-well injector, which can double the flow for a given horsepower, but at a lower pressure that requires much more careful design for the lower distances the heads will spray.