Read this response and predict the preceding dialog. According to EPA, a full-sized Energy Star certified clothes washer (CW) (with "water factor" - WF ≤ 8.0 gal/cycle/ft^3) should use on average 15 gallons (57 liters) of water per load, compared to at least two times that volume used by a standard machine.

Phone call:
Person A: What is the difference between new and old clothes washing machines?
Person B: 