I have a fairly new dam (8 mo.) that I would like to get grass to grow on this spring. I do not have electricity so I would like to irrigate out of the lake with a gas pump to water the new grass. The dam area, spillway, and surrounding area I want to water is about 600 feet long. My questions are: 1) How big of a pump do I need? 2) How far can you pump or pull water? 3) I assume you can push water much easier than pulling it to the pump? 4) What size PVC pipe would I need, and how long can it be and still be effective? I plan to lay the PVC pipe on top of the ground and keep it in place with sand bags until the grass is established.