Double site's have both in the usual spot, will be near the back of your rig. The only downside of a double site is the hook up for one will be right by the other spots fire ring, you my get the sewer gases every time you go out the door.
Yes the sewer and electricity are right next to each other. The hose depends on where your hookups are on your Rv and also the size of Rv. We have a 40' 5th wheel that's hookups are in front of the tires and had to use two sewer hoses to reach.
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