What in earth can they be ??
My son as just moved into an 1930's house & I have been asked to help sort the rather tired looking garden. Several old rotting tree's a mass of holytree's in all shapes and sizes. The lawn is a lot of moss and the previous owner dug rather a lot of small ditches ???(I'm thinking French drains ?? But there's No gravel ,just ditches) plus they dont seem to go in any special direction some go 20ft others 50ft
Neighbours claim they have no trouble with holding water !!!
So any idea's