How to calculate slope of pipe for both drainage and water supply.

How to calculate the head of a centrifugal pump.

You figure about 0.4 psi per foot of elevation. So at 100 feet, it would be forty pounds or so of head pressure. That's not exact. You can look up the exact figure if needed. It's actually a little more than the 0.4 figure, but that's usually close enough.

Bear in mind that this is per foot of elevation, not per foot of length.

Sounds like you are studuying for a test and think this is a good place to start. It is in miost cases but nothing like the bstudy materials you were likely given. The slope of a drain depends on the size of the pipe. There is no slope needed for a supple

How to calculate slope of pipe for both drainage and water supply.] We pitch our drainage at 1/4" to the foot for 2" and under and 1/8 per foot for 3" and over.

How to calculate the head of a centrifugal pump. I don't understand the question. What are you asking? Back to you, Tom