Backflow Calculations?
Backflow Calculations?
(OP)
I am designing a subdivision in which I need to consider backflow. Can anyone tell me a quick, efficient way of calculating backflow for my pipe system? Is there a spreadsheet that someone has that would be able to help me out?
Thanks
Thanks
RE: Backflow Calculations?
RE: Backflow Calculations?
RE: Backflow Calculations?
Remember Land Development may be fast paced but there is still an ethical level of quality and competence that needs to be maintained.
Best of luck to you or the registered Professional Engineer in charge of your work,
BigDog23
RE: Backflow Calculations?
Then set your start HGL as the obvert of the pipe at the outlet. Now calculate the HGL levels working from the bottom end up. Depending on local rules, you would generally design the piped system for a 1 in 10 year event and allow the flows greater than this to flow aboveground.
For most subdivisions you will need to pay attention to how the above ground flow works as this is also important as people do not like the look of water "flooding" their street.
Good luck
sc
RE: Backflow Calculations?
This is done assuming full flow for simplicity. Also, since you have water backing up, full flow is a good first assumption.
RE: Backflow Calculations?