how to draw sewer profile autocad

This lisp allow you  to draw the profile of sewer or storm water line

Upload this lisp to autocad and write in command line  profile and hit enter key

How do you create a sewage system?

Find the maximum combined flow in case of a combined sewerage system,Determine the elevation and slope of the invert; choose diameter of sewer and find capacity and flow velocity when flowing full. Minimum sewer sizes are: 0.15m for house connection; 0.20m. for sanitary sewers, 0.30m for storm sewers.

What are the forces acting on sewer pipes?

The various forces exerted on a sewer are explained as follows: 

1. Internal Pressure of Sewage

2. Temperature Stresses 

3. Forces due to External Load.

Why is circular sewer preferable?

The advantages of circular sewers are: The perimeter of circular sewer is the least with respect to the sewer of other shape. The inner surface is smooth hence the flow of sewage is uniform and there is no chance of deposition of suspended particles.

Which sewer collects sewage directly from the house?

The Outfall sewer is a sewer that carries the sewage from collecting systems and transfers it to a point of final discharge i.e a disposal plant.

What is done after the laying of sewer line?

After completing the laying of sewer pipe between two manholes. Further excavations are carried out for laying of sewer pipe between the next consecutive manholes. The process is continued form the outfall end of the sewer towards the starting end till the entire sewers is laid out.

How long do sewer lines last?

Clay sewer pipes can typically last for 50 to 60 years.

What are the 3 stages of sewage treatment?

Sewage treatment generally involves three stages, called primary, secondary and tertiary treatment. Primary treatment consists of temporarily holding the sewage in a quiescent basin where heavy solids can settle to the bottom while oil, grease and lighter solids float to the surface

What is the self cleansing velocity in the sewer lines?

Thus self-cleansing velocity may be defined as the minimum velocity of flow at which the solid particles present in the sewage will be held in suspension and also at which the scour of the deposited particles will take place so that the sewer will be kept clean.

How are sewer pipes laid?

Laying sewerage pipe involves setting the pipe into the ground, usually in a trench dug with an excavator. The sewerage pipe can be laid right on the earth. However, the trench must be dug on a slight angle to assist in the flow of liquids through the pipe. ... This improves the flow of water through the pipe.

How do I know if my sewer line is broken?

Inconsistent Water Level in the Toilet. One sure sign of a broken sewer line is when the water level of your toilet fluctuates regularly. ...

Slow-Draining Water. ...

Foul Smells and Odd Sounds. ...

Soggy Patches in the Yard. ...

Greener Grass. ...

Foundation Problems. ...

Pests. ...

Mold Within the Home.

What is the maximum slope of a sewer line?

For 4-inch PVC piping and a building sewer less than 50 feet long, the minimum slope is 1 inch in 8 feet, or 1/8-inch per foot, and the maximum is 1/4-inch per foot. For sewers longer than 50 feet, the slope should be 1/4-inch per foot.

How it works

 

Option 1 - fill all data in excel sheet  copy data and paste in autocad

Option 2 - fill the data one by one in autocad command line

Note:- copy manhole block to your profile file before start profile lisp ;

                   don't rename mh-1 autocad block

                  pipe dia to be divided by 100 for example if pipe dia is 700mm the data will be 7

 

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