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    19912106's Avatar
    19912106 Posts: 1, Reputation: 1
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    #1

    Sep 20, 2014, 04:26 AM
    Piping slopes
    How to calculate slope of pipe for both drainage and water supply.

    How to calculate the head of a centrifugal pump.
    jlisenbe's Avatar
    jlisenbe Posts: 5,020, Reputation: 157
    Uber Member
    		  
    #2

    Sep 21, 2014, 06:40 PM
    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.
    ballengerb1's Avatar
    ballengerb1 Posts: 27,378, Reputation: 2280
    Home Repair & Remodeling Expert
    		  
    #3

    Sep 21, 2014, 07:12 PM
    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
    speedball1's Avatar
    speedball1 Posts: 29,301, Reputation: 1939
    Eternal Plumber
    		  
    #4

    Sep 22, 2014, 05:36 AM
    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
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