The formation of scale build-up in pipes is influenced by the roughness of the pipe, as indicated by the Hazen-Williams "C" factor. The Hazen-Williams formula is used to calculate friction head losses in a piping system. A higher value of the "C" factor corresponds to less friction and reduced head loss. In metal systems, corrosion leads to a significant reduction in the "C" factor, resulting in increased head loss and scale build-up.
However, with Astral Aquarius uPVC systems, corrosion is not a concern, and as a result, scale build-up is inhibited. The absence of corrosion in uPVC pipes ensures a consistent and smooth flow, minimizing friction and reducing the likelihood of scale accumulation in the system.