A municipal water treatment plant reached out with a problem their operators were solving the hard way. The weir plates in the settling basins have a raised surface pattern, and cleaning them meant scrubbing by hand because a flat edge rode over the ridges instead of into them.
What they wanted was simple to describe and awkward to buy: a scraper about 3 feet wide, built like a push broom, with a working edge shaped to the plate pattern so it clears the surface in one pass.
We went out to the plant to measure the plates and talk with the operators, then designed the tool in three parts. The head is aluminum, cut and formed here and powder coated in our own oven so it holds up to constant wet use. The teeth are TPU, a tough polymer that is stiff enough to scrape and soft enough not to score the plates. They are cut to the weir profile and fastened to the head, so when they wear the plant swaps the teeth and keeps the head. The handle is fiberglass, light enough to work all day over a basin and unaffected by the water.
If your plant needs a tool that does not exist yet, send us a sketch.
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