A sump pump is one of the most important elements ... Dig down to the height of the sump basin plus another four inches. So, for a 30-inch-high sump basin, dig down 34 inches.

What is a sump pump ... Pedestal pump: This pump is up above the basin (and the water collecting in it). As such, this pump may sound louder, but it lasts longer (20 to 30 years).