1/8 " - 11/2".
5x+4y = -3 4y = -5x-3 y = -5/4 x - 3 Slope is -5/4.
4x+3y = 6 3y = -4x+6 y = -4/3x+2 in slope intercept form
-5x + 6y = 24 6y = 5x + 24 y = 5/6 x + 4 the slope is 5 6
For every vertical foot of pipe, take that and multiply it by .434.This equation will get within 1/2 -1/4 psi.
1/8th per inch
1/8" per foot
4"
1/4" per foot normally
A 3 or 4 inch pipe sticking straight up out of the ground? This is the clean out for the sewer line. If sewage is coming out of it, this means the sewer line is clogged or collapsed from there to the main city sewer. If you have a septic tank, the tank is full and needs to be pumped out.
The purpose of a sewer pipe is to collect waste from drains and peoples homes and transport it through the sewer system to the sewer plant. There it is treated and the water is recycled.
It should be 3" minimum, preferably 4.
1/8" per foot.
It really depends on your local building code, but 2% should be the minimum so that your pipe will be self-cleaning.
A slope of 1/4" in 12' is 0.0017 - inadequate for cleansing; it should be at least 0.0084 to produce a reasonable flow velocity of 2 ft/sec. The metric slope I was informed is 18mm in 1000mm Most codes require a 1/4" slope for each 12" of run.
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
No. You vent air from a sewer line.