If you can see inside your power meter and it's of the older style with five mechanical dials, you will see that the five dials are connected to one another through a gear train like this, with the gears having a ratio of 10:1. small gear and a larger gear are connected together, one on top of the other. Gear trains often consist of multiple gears in the train, as shown in the next two figures. In the case above, the purple gear turns at a rate twice that of the blue gear.
2 feet & lt ; < b > NOT exactly < / b > < br / > Depends on the codes and type of  drain  & nbsp ; For example a trap can be located 2 feet from a vented line and the fixture located 2 feet from the trap & nbsp ; A floor drain in some codes can be located up to 15 Feet from a vent , then you have indirect drain lines such as an ice maker or ...
The toilet is vented through the sink drain. The toilet drain should be 3â³, the sink drain is 1.5â³, the shared sink drain/toilet vent area should be 2â³, and the vent going up should be 1.5â³. Also note that where the 2â³ drain connects to the 3â³ at the bottom the fitting should be a y instead of a tee as shown.