Line or fixture?
If one sink drains slowly, the clog is usually close to that fixture. When several drains slow down at once, toilets gurgle, or water backs up in the lowest drain in the house, the problem is more likely in the main line. That is when jetting and a camera make sense.
Hydro jetting
Jetting uses high-pressure water to scour grease, sludge and debris off the inside of the pipe and flush it downstream, restoring the full diameter of the line rather than just poking a hole through a clog.
Camera inspection
A camera shows exactly what is in the line and where: a clog, roots, a sag, a crack or a separated joint. That means repairs are targeted and you are not paying to dig up more than necessary.
