We installed the TripleSafe sump pump system in this church. TripleSafe is a safeguard feature that includes the use of three pumps to ensure this basement will stay dry, even in power outages and severe weather events. In the case of heavy water or primary pump failure, the second and more powerful pump will kick in, if there is a power outage the battery powered UltraSump will take over. With a closed lid, moisture is unable to escape out the top.