I have a new wide angle lens camera that makes the house really pop in the pictures.

Do they still make stand alone cameras?

You may be able to call a Roto Rooter type guy with a camera and you can see what the issue is and then hopefully snake it especially if it worked previously.

., have a camera run on the sewer line, that's a $10k-$30k repair if bad.But there's so many potential pitfalls...

.- Installed cameras to ensure no vandalism .

Has anyone used fake security cameras to deter riffraff?

I actually have a camera also, but a good camera is a bit pricey. in Utah, and other areas they used lead to seal the pipes and trees like to penetrate the lead and create havoc.

very similar to a house i used to own. what I would do: pay a company to send a camera down it with you there so you can actually see the line the whole time, dont trust them if they say they sent one down and the line is broken or someones assumption that the line is broken.

I can't tell you the number of properties that look great from the photos and yet when you pull up you see all the things the camera forgot.   

When I arrive at the property, I have a camera/phone with me to document things of note or to use in case of emergency.