I've looked at a few water meters and see 5/8 shown on the top of the meter on a line, and others with 3/4 down on the side of the meter near the center. I've determined the 5/8 is for it's size (duh), but does the 3/4 on the side of others also indicitive of it's size. Thanks. I'm a licensed irrigator but have to learn some things like this from field experience. Input is appreciated.