No pipe should have standing water in it except a trap. Better put some grade on it
There is no way to start over.Going to have to cut the concrete out and start over.
Can't. It's hardwired in concrete. I made a mistake to trust someone who came across as a know-it-all experienced plumber. Then the mistake was compounded when the vent pipe was built into the concrete block wall. Now there really is no clearly apparent easy work around possible.No pipe should have standing water in it except a trap. Better put some grade on it
I know because between the shower and the toilet there was originally supposed to be a sink. A tee for the sink was installed in the concrete. I plugged it off with a clamped rubber end cap. When I pour water into the shower all is well. It propagates down the line in the direction of the toilet then down and out the 4" abs to the septic tank. But when I take the end cap off and look down there I can see that the water is not all draining. Roughly 2/3 remains in the pipe.How do you know there is water standing in the pipe?
Well not exactly. Below is the diagram of my plan to fix things.There is no way to fix what you have without busting concrete.