Minimum water supply pressure to a mobile home, according to most codes, is ______.

Minimum water supply pressure to a mobile home, according to most codes, is ______.

• A. 20 psi
• B. 30 psi
• C. 15 psi
• D. 25 psi

Answer: (A)

Fixtures need enough water pressure to operate properly, especially in mobile homes where the plumbing uses smaller-diameter lines and runs that can lose pressure. Most codes set 20 psi as the minimum supply pressure to ensure reliable flow to faucets, toilets, and showers even when city pressure is modest or there are some losses in the system. Pushing the minimum down to 15 psi could leave fixtures unable to function correctly, while higher numbers like 25 or 30 psi are not the standard minimum required by most codes. So, 20 psi is the commonly adopted minimum.

Fixtures need enough water pressure to operate properly, especially in mobile homes where the plumbing uses smaller-diameter lines and runs that can lose pressure. Most codes set 20 psi as the minimum supply pressure to ensure reliable flow to faucets, toilets, and showers even when city pressure is modest or there are some losses in the system. Pushing the minimum down to 15 psi could leave fixtures unable to function correctly, while higher numbers like 25 or 30 psi are not the standard minimum required by most codes. So, 20 psi is the commonly adopted minimum.