## How to calculate Pipe fall?

Don't know how to calculate the area of your garden or circumference of a pond? Ask your question here.
Forum rules
Dear convert-me.com forum visitors,

Our forum has been available for many years. In September 2014 we decided to switch it to read-only mode. Month after month we saw less posts with questions and answers from real people and more spam posts. We were spending more and more resources cleaning the spam until there were less them 1 legitimate message per 100 spam posts. Then we decided it's time to stop.

All the posts in the forum will be available and searchable. We understand there are a lot of useful information and we aren't going to remove anything. As for the new questions, you can always ask them on convert-me.com FaceBook page

Thank you for being with us and sorry for any inconveniences this could caused.

### How to calculate Pipe fall?

In FEET, if a pipe run is 100 feet long and each stick of pipe is 20 feet long, how is this calculated? How is pipe pro-rated per joint?

If the plan provides an elevation of 23.50 to 26.50 and the run is 100 feet long, how is the percentage of all calculated mathematically?

I've done this before, but I cannot remember the calculations.

Thank you.
AmericanDirt07

Posts: 1
Joined: Wed May 25, 2011 6:25 am

### Re: How to calculate Pipe fall?

AmericanDirt07 wrote:In FEET, if a pipe run is 100 feet long and each stick of pipe is 20 feet long, how is this calculated? How is pipe pro-rated per joint?

If the plan provides an elevation of 23.50 to 26.50 and the run is 100 feet long, how is the percentage of all calculated mathematically?

I've done this before, but I cannot remember the calculations.

Thank you.

Rise/Run gives you percentage of slope, so: (26.50 - 23.50') / 100' = 0.03 Multiply by 100 if you want to use the % sign.

At 3%, each foot will rise (or fall) by 0.03 feet, so each 20' joint will have an elevation change of 0.6 feet. (20' * 0.03)
Dirtman
Expert

Posts: 574
Joined: Sat Jan 21, 2006 2:04 pm
Location: California

### Re: How to calculate Pipe fall?

suggest me few links to get more details about Pipes related calculations. Interested in learning plumbing.
FernandoSucre

Posts: 1
Joined: Fri Aug 05, 2011 11:31 pm

### More info

• List of all units you can convert online
• Metric conversion
• Convert pounds to gallons
• Convert grams to cups
• Grams to milliliters
• Imperial vs US Customary
• History of measurement
• Return to Calculating things

 Our Privacy Policy Cooking Measures Converter Metric conversions