Installing a check valve in the pipe entering the pump will help greatly in retaining the prime on a pump above the water level. You can see an example of a good check valve at http://www.everything4pools.com/products/174/2287.html.
Relocate the pump to a more suitable location - less than 4' - preferably at water level or close to it.
a pump should not need to be primed very few times if all is working properly. You could have air getting in somewhere. But to prime take a waterhose and stick in your return line at skimmer and hold a rag around to create blockage. make sure the pump does not suck in the rag
Toulouse is situated at 141m above sea level
Karachi is situated at the sea level
A telescope or binoculars
170 m Laughlin is one of the lowest-lying communities in Nevada, situated just 558 feet (170 m) above sea level.
Oklahoma City, OK is situated 1,201 ft (366 m) above sea level.
Villupuram is situated at 11.93° North latitude, 79.48° East longitude and 48 meters elevation above the sea level.
Santa Fe, the capital is situated at 7,000 feet above sea level, is the highest capital city in the U.S.
The starting blocks can be no higher than 30 inches above water level.
Tip your device to the left as indicated by the picture above the door and the door will open. Congratulations...you just beat level 2.
You could draw a picture of someone standing in a swimming pool, with the water level being above their head.
Level Field Fund-Swimming was created on 2010-08-16.
Shake your device until all of the lights above the door turn green. Then open the door.