Kitchen drain issue

[Bodrey]

For the last week and a half, I've been having a problem with water backing up in my kitchen sinks...

I realized that my pipe configuration was incorrect when I started looking up videos on YouTube in an effort to fix the problem, and that it was likely contributing to the problem. So, I pulled it all out and re-configured it, including installing an ACC. This is what is look like now...

Kitchen-Plumbing hosted at ImgBB

Image Kitchen-Plumbing in the Mike Terryberry's images album

ibb.co

After washing a load of dishes, I let the water out and expected to see the sink drain quickly. Well, instead of the water draining (left sink) the water started backing up into the right sink until there was an even amount of water in the bottom of both sinks (3-4"). Since then, I installed a clean-out in the pipe in the basement that leads directly to the plumbing under the kitchen sink. While I had it apart I also augered it in both directions.

Truth be told, I don't think the auger was that effective. It was only after I stuck the blow gun from my air compressor into the clean-out that several chunks of crud were dislodged. Of course, I couldn't extend it into the pipe beyond the clean-out opening. In any event, it didn't resolve the issue - still clogged.

I also removed the ACC temporarily and poured Drano Foamer into it. That section of pipe leads directly to the first elbow in the basement at which it connects to a straightaway section of pipe. I let it sit an hour per the instructions and flushed it with hot water. It had no effect.

Today, in desperation I borrowed a friend's pressure washer and using a Sewer Jetter Kit I bought I stuck the hose into the pipe as far as I could (in both directions). I got very little crud doing this. So, I don't know if there just wasn't that much build-up to begin with or if the pressure washer just isn't powerful enough to dislodge anything. Needless to say, this also didn't resolve the blockage. Also, due to the thickness of the kit's hose and fittings they couldn't pass through the elbows.

I'm at my wit's end and don't know what else to do but admit defeat and hire a plumber, and that's going to be costly. Does anyone have any other suggestions for anything I may have overlooked?

 

[Reach4]

When you let the drain sit overnight, and then put water down the drain, how much water goes in before things back up? Given that, we can estimate how far down the blockage is. A small hole in the blockage will pass some water, but not the full flow needed.

For kitchen drains, the usual place for a blockage is where the path turns from vertical to horizontal. That might be under the basement floor.

When I had a kitchen drain line blockage, I removed a vertical section of pipe, and inserted a Brasscraft drain bladder. Shove that down, and turn on the water. I restored the section with flexible couplings.

Your jetter should be able to take care of that. Run the business end past the suspected blockage place several times.