Mainline strainers shall be removed and inspected for damage and corrosion every ______.

Mainline strainers shall be removed and inspected for damage and corrosion every ______.

• A. Day
• B. Month
• C. Year
• D. Week

Answer: (C)

The important idea here is maintaining the water supply path by checking components that can trap debris and corrode over time. Mainline strainers should be removed and inspected on a yearly basis to catch any damage or corrosion before it affects flow or reliability. Why yearly works well: these strainers sit in the main line and can accumulate debris and show corrosion, but they aren’t typically exposed to rapid wear. An annual inspection provides a practical balance between identifying developing problems and the effort required to take them out of service. If damage or heavy corrosion is found, the strainer can be serviced or replaced during that scheduled maintenance, minimizing the risk of reduced flow or blocked outlets. More frequent checks (daily, weekly, or monthly) would be unnecessarily disruptive and costly for routine operation, while a longer interval could allow serious issues to go unnoticed. During the annual inspection, you remove the strainer, look for signs of damage or corrosion, inspect the basket and housing, clean out any debris, and confirm seals and fittings are sound before reinstalling. This keeps the mainline clean and preserves reliable water supply for the system.

The important idea here is maintaining the water supply path by checking components that can trap debris and corrode over time. Mainline strainers should be removed and inspected on a yearly basis to catch any damage or corrosion before it affects flow or reliability.

Why yearly works well: these strainers sit in the main line and can accumulate debris and show corrosion, but they aren’t typically exposed to rapid wear. An annual inspection provides a practical balance between identifying developing problems and the effort required to take them out of service. If damage or heavy corrosion is found, the strainer can be serviced or replaced during that scheduled maintenance, minimizing the risk of reduced flow or blocked outlets. More frequent checks (daily, weekly, or monthly) would be unnecessarily disruptive and costly for routine operation, while a longer interval could allow serious issues to go unnoticed.

During the annual inspection, you remove the strainer, look for signs of damage or corrosion, inspect the basket and housing, clean out any debris, and confirm seals and fittings are sound before reinstalling. This keeps the mainline clean and preserves reliable water supply for the system.