On 05/08/2019 22:29, The Natural Philosopher wrote:
On 05/08/2019 17:11, Bill Wright wrote:
I have some block paving that's on a slope. The slope varies from 1:40
to 1:10. When the rain washes across the area it takes some of the
silver sand. What's the way to stop this happening?

Bill
cut it with cement
4:1 will set hard. 10:1 will be crumbly but stay put



And look utterly naff.