Drilled a hole through kitchen cabinets and ran a 2 inch pvc line in the crawlspace. Reconnected with new tubular, pulled the dishwasher, and ran the drain under the sink for the dishwasher. Put the dishwasher back and made customer aware that the dishwasher will need a a new stop under sink if it’s ever replaced. Ran almost 30 feet of 3 inch pvc in the crawlspace below to other side of house and cut in a new wye to 4 inch pipe. Reconnected to existing vertical cast line for the washing machine also. Ran an extensive amount of water to test for leaks and found one on the right basket strainer nut. Tightened the nut and stopped the leak. Capped the old vent line on the roof, in the crawlspace, and under the kitchen sink. Sink is flowing properly now.
