Underlining (pond)
The layer of builders' sand or special matting that is laid directly on to the soil during the building of a pond. It works as a cushion to prevent stones or sharp objects from puncturing the pond_liner or shelf.
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| | Underlining (pond) The layer of builders' sand or special matting that is laid directly on to the soil during the building of a pond. It works as a cushion to prevent stones or sharp objects from puncturing the pond_liner or shelf. | |
