Question: how much water does my lg front loader use?
Answer: Agitator Top-Loader (19 Gallons) Some agitator top-loaders still submerge dirty loads in water, with the least water efficient in our ratings using about 25 to 26 gallons to wash an average load. ... 
High-Efficiency Top-Loader (13 Gallons) ... 
Front-Loader (7 Gallons)