To determine the correct pressure range for a residential water supply system, we need to analyze the options provided:
A) No less than 70 psi: This option suggests a minimum pressure of 70 psi. However, this is quite high for residential settings, as excessively high water pressure can damage plumbing fixtures and appliances.
B) 35 to 55 psi: This range includes moderate pressures that are commonly found in residential water systems. It is a plausible option, but we need to consider other options to confirm.
C) No more than 45 psi: This option limits the pressure to a maximum of 45 psi. While this might be sufficient in some cases, it is generally on the lower end of acceptable residential pressures.
D) 40 to 60 psi: This option provides a range that is widely accepted as the optimal pressure range for most residential water systems. It strikes a balance between being strong enough to ensure proper water flow and low enough to prevent damages to the plumbing system.
Given the analysis, the best and most accurate answer regarding typical pressures for a residential water supply system is:
D) 40 to 60 psi
