Water storage tank level indicators shall be tested for accuracy and freedom of movement every how many years?

Water storage tank level indicators shall be tested for accuracy and freedom of movement every how many years?

• A. 1 year
• B. 3 years
• C. 5 years
• D. 10 years

Answer: (C)

Periodic verification of water storage tank level indicators is essential to ensure they read the true water level and can move freely without sticking. This testing checks two things at once: that the indicator reflects actual levels accurately, and that the mechanism isn’t bound by corrosion, scale, or debris so it can respond to changes promptly. Doing this on a five-year cycle balances reliability with practicality; it keeps drift and sticking issues from going undetected long enough to affect operation, while avoiding unnecessary frequent maintenance. If the indicator reads correctly and moves smoothly, no action is needed; if it doesn’t, recalibration, repair, or replacement is required to maintain accurate monitoring and reliable tank protection. Shorter intervals would add unnecessary maintenance work, while longer intervals risk undetected problems impacting system performance.

Periodic verification of water storage tank level indicators is essential to ensure they read the true water level and can move freely without sticking. This testing checks two things at once: that the indicator reflects actual levels accurately, and that the mechanism isn’t bound by corrosion, scale, or debris so it can respond to changes promptly. Doing this on a five-year cycle balances reliability with practicality; it keeps drift and sticking issues from going undetected long enough to affect operation, while avoiding unnecessary frequent maintenance. If the indicator reads correctly and moves smoothly, no action is needed; if it doesn’t, recalibration, repair, or replacement is required to maintain accurate monitoring and reliable tank protection. Shorter intervals would add unnecessary maintenance work, while longer intervals risk undetected problems impacting system performance.