BobT3354
New Member
I am helping my brother with his bathroom remodel. It is a 100+ year old house that has been updated at various times over the years. When we took up the subfloor near the toilet, I noticed that the drain pipe from the toilet runs sideways, or even a slight reverse slope for a little bit (less than a foot) before it ties into the stack. The toilet has always worked fine, but I'm wondering how this could possibly work? Is it just that the volume of water coming from the toilet washes through the sideways part and down the stack or what? I guess I'm just worried about putting the floor back down like this.