A tank or pond containing a layer of sand or gravel, used for filtering large quantities of liquid.
More example sentences
- When we arrived, we saw that the liquid was not passing through the sand, but was ponding on the surface of the filter bed.
- At the Southernwood filter bed 48 mm of rain was registered.
- The pipe connected the roof to the filter bed that didn't look like a recharge pit.
Definition of filter bed in:
- The British & World English dictionary