Hydratec Inc.

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Standalone HydraCALC (Location)

Button: Calculate Function: Calculation Results

Description:

When running a calc, you first get this error indicating a number of possibilities.


Then the Pre-calc Questions window pops up with a warning.

But you go ahead with the calculation anyway and get this result


Your System Has a Deficit

System is -nan(ind) psi over the Water Supply Curve




Solutions:

Cause:

System is being calc'd from a tank and water supply information was not entered correctly


Solution:

When using a tank as your supply, the hydraulic calculation will stop at the pump discharge reference point.  Do not include any reference points between the pump suction and the tank.

Also, make sure the connection, inlet, and outlet values are all the same

Updated: March 5, 2026, 2:39 p.m. Created: March 5, 2026, 1:42 p.m.