A toilet I have in my house keeps getting clogged up so one day I ripped up the floor boards (it is on a second floor) and I followed the toilet 3-inch toilet drain pipe line. To my dismay, before taking a vertical drop, the drain runs 15 feet. The drain is well ventilated after about 9 feet and is at a steady slope of only 1/4 inch per foot. I replaced the drain pipe, but there was no damage to the original one so I don't think that will help much. I built a 1.5 inch pedestal below the toilet to slightly increase the slope. Even though this is at-or-above the 1/4 inch per foot slope minimum, is this 15 foot horizontal drain setup "up to code"?
Unfortunately, the house is poorly designed and it is pretty much impossible to move the toilet to a different location. Additionally, there are no possible different routes for the toilet drain. The closest vertical drain drop is only about 6 inches away but it is only a 2 inch pipe for the shower, and 1.5 inch pipe for the bathtub (which merge a couple feet down the wall). Why didn't the builder run the toilet drain down the same wall? Who knows... I cannot run the drain line down the same wall myself because the drains go into a solid block of the concrete below the house.
Secondly, I've been looking at more expensive toilets which may help reduce the chance of the toilet clogging up in my current setup. My current toilet it some generic 1.6 GPF toilet. But I am considering a jet, pressure-assisted, or power-assisted toilet. Kolher advertises their power-assisted toilet is king when it comes to flushing -- but will this help me in my situation?