These products work together to keep the crawlspace dry. The dehumidifier filters the air and collects all the unwanted moisture droplets the air carries. These droplets are collected in a reservoir and drained into the sump pump. The pump collects water from the dehumidifier, but also from the ground. Ground water seepage is inevitable and only contained by a pump like this. We install it in the lowest spot so it will perform the best. Once the water level hits a certain point, it automatically pumps it out of the crawlspace through a smart pipe.