Drainage Ash:
A coarse Ash similar to an aggregate used for drainage.
Firewood.
Fertilizers:
Mushroom Compost.
Cow Manure.
Concrete Mix:
40% Clean Washed Beach Sand mixed with 60% 10mm Crushed Blue Metal, we then add an extra 10% Blue Metal Dust to strengthen the mix & make it a lot creamer to work with.