×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

water modeling

water modeling

water modeling

(OP)
I am modeling a water system for a subdivision and I need to set my tank elevation from the pressures I have from a fire flow test. My question is which pressure do I use and why? residual or staic?
Thanks for the help

RE: water modeling

You need to use the static pressure (no flow), then draw off all of the demands (including upstream), and make sure that you have at least the required residual pressure at the highest point along the line after you have taken off your subdivision load. You will also probably need to check with a fire flow in addition to normal loads.

If you cannot meet the required residual pressure you may have to increase the pipe size.

RE: water modeling

You FIRST need to check with the water supplier to determine if you must set your tank overflow elevation to match their existing tanks or their water system master plan. Then either do as they say or follow Francesca's suggestions.

good luck

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources