Customer had washing machine backing up into home. Replaced the washing machine box, Ptrap, and horizontal pipe going to cast tee. Reconnected with new washing machine supplies and tested work to ensure it’s draining properly. Noted to customer buildup in the tee that it tied into. Did a cleaning with the mini flex shaft to open it up. There’s a 90 day workmanship warranty in all pipe connections done, made customer aware there’s no warranty or guarantee to cover the pipe backing up since it goes into slab with cast pipe.