Insufficient washing of sand grains in a rapid sand filter causes Options: A . &nbspAir binding B . &nbspShrinkage of filtering media C . &nbspMud balls D . &nbspExpansion of filtering media

Insufficient washing of sand grains in a rapid sand filter causes

Question

Insufficient washing of sand grains in a rapid sand filter causes

Options:

A . Air binding

B . Shrinkage of filtering media

C . Mud balls

D . Expansion of filtering media

Answer: Option C

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