We are thinking of installing a laundry room for a 20 unit apartment building that has no laundry onsite. We have a basement available but would need to install a sump pump or some other pump to pump the water into the drainpipe which is in the crawlspace. There is already a sump pit but I'm wondering about what kind of pump and the durability of a pump that might have to pump water 12 feet up and 5 feet across for 3 or 4 washing machines at the same time. Any ideas? Thanks.