It's kind of ironic now, seeing as the new canon says that she carries her own dipper to prevent people from pulling the bottomless dipper trick on her.
Ch.12 - Does It Have a Purpose?In that case, just leave it to me! This dipper I always carry isn't just for show!Huh? What's wrong, Hijiri?Oh, Minamitsu...actually, we wanted to draw some water, but as you can see, the bucket is broken...KshingggBut isn't the dipper missing its bottom?Yaay!