Computer-implemented system and method for designing a pressure-dosed drain field

A computer-implemented method for designing a pressure-dosed drain field, wherein a user uses the method to design a pressure-dosed drain field, comprising:

• (a) providing a screen that allows a user to specify length and diameter for pipes that comprise the forcemain and discharge assembly;
• (b) providing a minor loss screen that calculates minor losses based on fitting selections made by the user;
• (c) providing a screen that allows the user to specify pumping liquid level and discharge elevation;
• (d) wherein the drain field designed by the user will have a number of laterals, wherein the number of laterals comprises a first lateral, and wherein the first lateral comprises a distal orifice, providing a screen that allows the user to select the number of laterals and enter a specified residual pressure for the distal orifice of the first lateral;
• (e) providing a screen that allows the user to enter or select a coefficient to be used in calculating friction losses in the laterals, manifold, forcemain and pump discharge assembly;
• (f) wherein the manifold comprises segments, wherein the number of manifold segments is determined by the number of laterals entered by the user, wherein each segment has a diameter and length, wherein the laterals are spaced a certain distance apart from one another, and wherein the spacing between manifold segments determines the spacing between the laterals, providing a screen that allows the user to enter the diameter and length of each manifold segment;
• (g) providing a pump file that comprises a list of pumps and a window that displays a list of the pumps in the pump file;
• (h) wherein each lateral comprises a plurality of orifices, wherein the space between each orifice on a given lateral defines a lateral segment, wherein each lateral segment has a diameter and length, and wherein each lateral has an elevation, providing a grid that indicates, for each lateral, orifice diameter, orifice spacing, diameter and length of each lateral segment, and the elevation of the lateral, wherein each of the values displayed in the grid is modifiable by the user;
• (i) providing a tabulated results screen that shows, for each lateral, maximum and minimum orifice flow rate, orifice flow differential, lateral flow rate, total lateral head loss, manifold flow rate, manifold head loss, and pressure at the distal orifice of each lateral;
• and
• (j) automatically calculating the flow differential across the pressure-dosed drain field designed by the user and displaying the flow differential on the tabulated results screen.