A meter and service are being sized. The peak demand is 24 gpm at a required 20 psi residual. Available static street pressure is 55 psi, and the total pressure loss budget (meter, elevation, friction, fittings) is calculated at 40 psi. Is the design feasible?

Giải thích

Subtracting the 40 psi loss budget from 55 psi static leaves only 15 psi, which is below the required 20 psi residual, so the design is not feasible and must be revised (larger pipe or reduced losses). The correct reading is that available pressure minus losses must still meet or exceed the residual, and pipe color or material alone does not decide feasibility.