Septic Tank Designer Tools | Design of Septic Tank

This tool helps you design a septic tank. Enter all the values in the box below and enter the get design button to get all the appropriate dimensions of the septic tank.

Fill all red Coloured details below

a) No. of user: user

b) Rate of sewage flow: lpcd

c) Cleaning period of Septic Tank: 6 month 1 year 2 year 3 year

d) Detention time: 1 Day 2 Day 3 Day

e) L/B ratio: 2 3 4

f) Assume Effective depth of Septic Tank:
meter feet inch

Free Board: 30 cm 35 cm 40 cm 45 cm

……………………………………………………

Effective Volume of septic tank required:

Width of septic Tank:

Length of septic Tank:

Effective depth+Free board:

Design Considerations

1. L/B ratio should be between = 2 to 4
2. Minimum effective depth of septic tank should be = 1 m and, Free board = 30 to 45 cm
3. Minimum width of septic tank should be= 0.75 m
4. Minimum effective volume of septic tank should be = 1m3

How to use this tool?

Read All requirements and design numerical for a septic tank.

Design of septic tank | Design of septic tank calculation