The process begins with setting the sump basin upside down on the basement floor and marking its outline. (When choosing a place to install the pump, factor in a proper drainage plan and a proximity to a ready power source.)
Next, use a demolition hammer to chop through the concrete floor and dig a hole deep enough to set the sump basin inside it, flush with the floor. Before setting the basin in the hole, wrap its exterior base with filter fabric. This will prevent silt from clogging the pump motor. Then, after the basin is placed inside the hole, put several layers of gravel inside it, then lay a stone paver on top of the gravel. This will keep gravel out of the pump and provide a firm platform for it.
A one-way check valve will need to be connected to a PVC pipe to run up the wall and out of the basement. While the arrangement of this pipe will vary from home to home, its universal function is to carry water up and out of the house. When drilling a hole for the pipe in the house wall, use a hole saw and seal the area around the pipe with a paintable caulk. This will provide a watertight seal. The PVC pipe should extend outdoors, and empty through a downspout. If the grading of the land is insufficient for proper drainage, either invest in regrading the yard or in an even longer downspout to ensure water is fully carried away. Some homeowners may be tempted to simply run a drain line from their sump pump into a municipal storm drain, however most locales won’t allow this. Before installing a sump pump, check with your town to see which drainage options are permissible.
To finish the installation, fill in the crevice around the sump basin with new concrete, mixed in a trough with a hoe. Fill in around the basin to the top with concrete and smooth it off with a pointed trowel. After powering up your pump, test it by filling the basin with water. If you ever need to replace the pump, this can be done by simply switching off the power to the unit, disconnecting the old model from the discharge valve, reconnecting and leveling a new pump, and testing it the same as you did upon the initial installation.