Sump Pump Installation
Installing a sump pump is no laughing matter. It takes a little time and a lot of patience to get the job done properly. You will also have to be handy with a jackhammer. The sump pump will need a pit around 8 inches from the walls to keep from hitting the foundation footing. Mark the area to be removed with chalk. Allow at least 6 inches of space around the rim of the pit.
Knock out the perimeter with the jackhammer. Use it to get the center hewn out and use it to loosen the chunks of cement from the earth. Get a few of the kids on rock removal duty. Dig a hole for the liner, it should only be deep enough for the liner to fit in with the top even to the surrounding floor.
Put the liner into the hole and use coarse gravel. The gravel pieces should be about 3/8 to ½ inches around. Put in enough gravel to reach at least 3 inches from the top of the basement floor. You want the finished product to be high enough so when the new concrete bed is poured it remains 1in higher than the original floor. Why? It is so any run off or overflow will seep back through the gravel and into the pit. You can now pour the concrete. Mix the one part of cement, two parts sand and 3 parts gravel and a bit of water. For one bag of cement you will use at least 51/2 gallons of water.
Using a float and a board smooth out the surface of the concrete be sure you push it right up against he sides of the old floor so they will integrate finish it with a trowel and let dry. This curing process will take a day or two.
Now that it is all dry you can install your pump. A submersible pump runs anywhere from 75-125 dollars and the manufacturers that make the units have solid reputations. You will need to tape sown all the wires to the sides and put the pump completely down inside the pit. Have the riser just above the rim of the pit; you may use a piece of PVC to help you make the reach. Look at the pump to make certain the float can move freely, now put on the lid. Connect the pump to the outside drainage pipe and turn her on.