Have a 2,000sqft home washer located in basement that has been converted into two bedrooms and laundry area. On city sewer I'm pretty sure only water going into the pump is from washer and possibly dishwasher. How long is the pipe supposed to be from the washer to the grinder pump? My basement floor has been flooded 2 times since I've lived there in 6 years it ruined the floor and drywall had to demo. Just want to fix problem before I put back together again. Thanks in advance.