This AquaVita 925 sump pump incorporates a base inlet that lets the water out of your sump pump. The underside inlet feature allows this sump pump to pump out water to the lowest levels. You need to use the AquaVita sump pump in swimming swimming pools, throughout basement flooding, etcetera. https://toplistar.com/story15471070/sump-pump-installation-rochester-ny-no-further-a-mystery