Help with TDH calc.

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Your System Curve is likely to be between B and C.

Get some vacuum and discharge pressure readings at:

1721072463167.png

RPM..........Feet of Head.

1,150.............
1,500.............
2,350.............
2,750.............
3,100.............
3,450.............

1721072226534.png
1721072097073.png

y=0.01x^2, x from 0 to 100 - Wolfram|Alpha

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Last edited:
Super helpful! I appreciate that. Once I get home I will install that vacuum gauge into the correct port. Total rookie, newb move there. Whoops! So hypothetically if I get the optimal flow for adequate cleaning is there an advantage to programming different stages/speeds? I have 4 programming stages, system default. My old single speed ran at the max (3450?) full time and the advantage of this 3hp pump is I don't have to do that. So if say 1730 rpms was good why not run it 24/7 at that speed? Unless I am cleaning or flushing of course.
 
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