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A staff gauge (also called a limnimetric scale) is a simple visual device used to monitor and measure the water level in a reservoir, dam, basin, canal, or any hydraulic structure.
According to the technical documentation:
The “EL” model is made of cast aluminum, providing strong resistance to corrosion, dirty water, and seawater.
The standard module has a width of 15 cm (other widths available on request) and a thickness of 7 mm (5 mm plate + 2 mm raised digits).
Graduation: every centimeter is marked, with digits every decimeter (every 10 cm) in the standard version.
Can be installed vertically or inclined.
Modular 1-meter sections allow easy replacement of a damaged segment.
Customizable finish: colors, markings, dimensions, etc.
For your 3 480 m³ pond (surface 2 500 m²), fed by a pump and drained via a monk drain:
The staff gauge provides visual monitoring of the water level, essential for:
tracking remaining water volume,
managing manual or automatic draining via the monk,
evaluating the usable water depth,
understanding level variations (evaporation, inflows, pumping).
Its modular and robust design is useful in aquaculture or dam environments where mechanical stress, sediment, or impacts can occur.
Vertical or slightly inclined mounting can be chosen depending on access, visibility from the bank, or existing structures.
Choose a graduation length matching your pond’s water depth (e.g., 2–3 m of usable depth).
Ensure solid mechanical fixation on the support (wall, post, basin edge). Adjustment is easy thanks to oblong holes.
Ensure good visibility: select contrasting colors (e.g., black numbers on a yellow background).
Check resistance to environmental conditions such as sediment load or chemical exposure.
Maintenance: clean the gauge if sediment or algae accumulate.
Integrate it into your water-level monitoring routine to track volumes, inflows, and losses.