Kitchen sink backing up?

[nwirt74@gmail.com]

Our 2013 36RE kitchen sink is not draining? Last evening I pulled piping loose from the sink, tried snaking the pipe leading to the tank with no success? Tank valve is showing to be open in my valve compartment? Indoor tank monitor showing full? No other issues with the bathroom or laundry plumbing? When using the snake, water was in the pipe to the point where the pipe goes through the spice rack area and on to the underneath sink area? Valve not open???? Vent problem??? PLEASE HELP ASAP????!!!

[r time soon]

Behind the spice rack should be a Hepvo trap. Did you remove this before you snaked the drain line? Snaking the Hepvo trap might have ruined it. Not sure why tank would be that full as to back up in the sink unless it is really that full. Might need to drop the corplast underbelly and inspect the drain valve and cable for proper operation.

[travelin' texans]

If your only indication the tank is full is the sensor that doesn't necessarily mean the tank is full, they are notorious for being totally useless.
I also agree you've likely ruined the Hepvo trap, it looks like a flattened bicycle inner tube, so snaking or the use of a plunger will wreck it fairly easily. Snaking any plumbing on a rv is not recommended nor the use of powerful drain cleaners, water or air pressure are better options.

[mfsmith57]

I had the same problem with my 2016 36RL. I purchased 2 items: https://tanktechsrx.com/product/ttoolrx/ and https://www.walmart.com/ip/Camco-Rhi...caAtpKEALw_wcB

[mfsmith57]

https://www.youtube.com/watch?v=y5sGHmvLk_Y&t=357s