Will you be installing the sump pump in the kitchen or in the bedroom? Just kidding.
More info is needed before anyone can give advice. Do you have a basement or a crawl space? Is that where you want the sump pump? If so, why? Is it flooding?
Etc.

Here's more info... I have water seapage on all 4 basement walls within a foot of the floor. This leakage is extremely slow, but over the course of several hours has formed several pools of water. In addition, there are a couple of spots on the floor, several feet in from the walls, where half an ounce of water or so forms. A 2 inch rain downpour (or more) is enough to cause the need for towels. It has been suggested that there is an underwater stream. My neighbor reports that their sump pump runs 'all the time', although that isn't very definitive. My walls are made out of cement block and there is no drain tile or sump pump there today. I have broken up the floor near the wall to verify that no inside drain tile exists and there is no palmer valve in my sewer. I modified my grade a couple years ago and have new gutters/downspouts. A consultant reports that my drainage above the ground is very good and that the water is likely coming from the bottom up. Any resources on how to do this job myself would be helpful as well as any other suggestions.