O.k., you totally lost me at "strong sewer odor"; but my concern was going to be about the potential for pool/water/mildew smell. IME, houses with an indoor pool always seem to smell sort of...pooly, which would be a major turn-off for me.
I'm not kidding when I say the "pool" smell of walking into a hotel or a school for a swim meet is one of my families favorite smells! When we started looking at this house online, my oldest said "Mom, our house would smell like a pool!"
But yeah, sewer smells are a hard pass!
That is also one of my all time favorite smells. I love the smell walking in to the Y, I even looked for chlorine scented candles once lol