Since the original gravel smaller particle size, and scattered susceptible to erosion; recommended to replace gravel particle diameter larger, more stable
Due to the small particle size of the original gravel, it is easily washed and scattered, it is recommended to replace it with pebbles with large particle size, which is more stable.
Due to the small particle size of the original crushed stone, it is easy to be scoured and scattered; it is recommended to replace it with pebble with larger particle size, which is relatively stable