First there should be no reason the a home needs a 4 inch waste line. Three inch is more then enough. But if you insist use a "consentric' reducer as opposed to the " "ecentric". Other wise your waste will have to jump up from the four inch , and you will have back up.
A little more detail about the sitsuation would help. New construction, remodel, sewer outlet in the house to street or sewer outlet in house to main going out of house.
Sewer is in and connected
some people flush their fish down the toilet when it dies, and the toilet is connected to the sewer.
a grade that stinks
No
it is on the street "poptropica towers"
Almost never but can and has been done. Any treatment on-site reduces solids the city sewer department must treat.
form_title=Sewer Main Repair form_header=11063 How would you best describe the nature of the project?*= () Install new sewer pipe from home to street () Replace existing sewer pipe from home to street () Repair broken sewer pipe from home to street () Other () Don't Know "Explain why the sewer pipe needs to be installed, replaced, or repaired."*= [] Bathtubs and sinks drain slowly [] Toilets drain slowly [] Wastewater backs up into bathtubs and/or other drains [] Dishwasher wastewater backs up into sink drain [] Odors can be detected coming from drains [] Wastewater detectable in yard [] Plumber or other professional has recommended it [] Other What is the distance of the home from the street?*=_[100]
Oh Yes, very common problem
There is a sewer in Early Poptropica, below Main Street, with lots of spiders. The sewer in Super Power Island is under the restrooms in City Park. Go down from inside either one (gender specific).
Depends on locality as many of the one family homes require I install sewer mains from 4" - 6". The size of the "sewer" is based on fixtures units that are connected and to local codes
American Builder - 2004 Oakland Street Sewer Pipe Replacement 3-12 was released on: USA: 8 May 2006