 Because he may very well say she had a 40 gallon. I put in a 40 gallon. And your argument is going to be there isn't enough hot water where there was plenty of hot water before in my regular tub. By the way, those walk in tub things that you see commercials for, do they take more water than a regular bathtub? I I'm not sure. I'm actually not sure. Oh, by the way, it really doesn't matter. He he should know how much water those take.