I don’t have a basement.

I have a crawlspace, the plumbing is all in the crawlspace.

Water doesn’t need to be pumped up from the crawlspace because the lines are under pressure from the city main.

Now, if the city water distribution system was down I wouldn’t have fresh water, but there are zero water pumps in my home.

As for sewage, the sewer lines are below all my plumbing, so gravity is enough to drain them.

That’s… what?

In my home there aren’t any pumps.

Water comes in, under pressure, from the city to my water outlets around the house.

Waste water goes down a drain and out into the cities sewage system completely by gravity.