About the Sand Covering Unit
There are various reasons for using sand as a covering medium, the most important being to apply some counter-pressure to the seed during germination. Another reason is to lighten the darker colour of potting soil, which will cause the light to reflect. This light reflection makes for a more compact and stronger plant. This unique feature of the Sand Covering Unit is its capability to scatter a very thin and even layer. Apart from that, the scattering density is fully adjustable, without impacting the homogeneity of the scattering layer.