Help with Plumbing Change

[me86]

Hi, I am thinking of making this change to the sanitary plumbing in my basement, and I wanted to verify that it would meet code as the IPC is really confusing to me, in particular the vent part. The top schematic is how it is right now, the bottom schematic is the proposed change. Hopefully it is clear, I had to compress the picture in order to attach it. Thank you!

[Mr_David]

I'm confused.
What is the Drain Tile.
Your existing sewer goes to a floor drain with a p-trap?
Or is this drain for rain water. Rain water drains should not be connected to sewer lines.
But I recently watched a History channel video where some systems back East do have a combined system.
But that system is old and problematic and fails during heavy rain.
I have also heard of running p-traps on sewer lines but having a line such as yours with a drain at trap doesn't seem right.

[me86]

The drain tile is clay.

This is a house built in 1927.

The floor drain goes to a p-trap which goes to the sewer. The drain system connects to the floor drain before the p-trap through the use of a palmer valve.

So yes, the 2 are currently connected. Hence part of the reason for the work I am considering - to put in a sump pump. However, last fall there was a record rainstorm, and the basement was fine.

If you type in 'palmer valve' into google, click on the first link (a pdf). The bottom of page 2 and top of page 3 will give you a better idea of what is currently going on under my basement.

I thought p-traps at floor drains were the norm.

Thanks

[Mr_David]

Added link to make it easier for others to find.

keep_your_basement_dry.pdf



Okay I understand now.
I would try to route the floor drain to the sump to eliminate the p-trap from the Sanitary sewer system.
I don't think that p-trap was designed for sewage waste from a bathroom.
Then run a new line to connect to Sanitary Sewer after the Floor drain

I've heard of running p-traps on the sewer main but I'm not familiar with them.
I would think that this one was not for that purpose.
Check your local codes.
Where does your existing Sanitary sewer system connect to this system?