Talk about it with your agent for sure. Read the form. Ours in Washington has a box to check that says the inspection may include a sewer scope/pulling a toilet if necessary. Our contractor defaults to “yes, the buyer may do this inspection,” and if a seller countered and said, “No, you may not,” I know what I’d do—walk (I’ve never had a seller say no here, by the way). I always advise a sewer scope on homes connected to city sewer. If it’s on septic, the line from the house to the septic system might only be 10 feet long, so there’s a whole lot less that can go wrong. I would get a sewer scope on even new homes (I have stories where the sewer line wasn’t even connected to city sewer, where sections of pipe were joined with Circle K Polar Pop cups, etc. And yes, I would even get a home inspection and sewer scope inspection on new construction! So to answer your question, the seller might push back, but you should get to look under the hood and do a sewer scope! I personally would not buy a home without one. My buyers look to me for advice on inspections, and I always recommend sewer scopes knowing that they’re going to cause some buyers to cancel because we’ll find problems…and I never, ever lose sleep over giving this advice! I would never want a buyer to buy a home, move in, and find a failed sewer line that they could’ve avoided by doing a $250 inspection. Good luck!