Pride Plumbing came out and repiped and replaced the cast iron drain lines under the house in the basement, going to a) the fixtures in the kitchen (sink and dishwasher) and one bathroom (sink, toilet, and bathtub/shower) - replacing the toilet bowl's flange and wax seal, the P-traps underneath all the sinks, and the bathtub/shower's waste and overflow; and b) the washing machine - installing new PVC piping, fittings and supports under the house and up through the flooring for each fixture and air admittance valves inside the home where needed.