Sand and mud separator

A sand separator is a device that separates sand or other solids from water
The separated material drops down into a tank or reservoir where it can be removed later. It is not a true filter, since there is no physical barrier to separate out the particles, but it is often used upstream of a filter to first remove the bulk of the contaminant, where the filter does the final cleaning. This type of design reduces the time required to flush and clean the filter.
Eccua sand separators are tanks of glass fiber reinforced plastic. You can order them in different dimensions.