A mason's line is stretched between corner blocks to help maintain level as blocks are mortared (LEFT).
Mortar is placed loosely on slab, not packed, to allow block to be pushed down firmly (RIGHT).
We used 80 lb. bags of QuickCrete Type S Mortar Mix with 5 1/2 quarts of water per bag.
A concrete block is placed and then brought to level by hammering on a 9" x 9" x 1-1/2" board (LEFT).
A block's surface isn't exactly level, so the "average" of four Bulls-Eye levels was used to level each block. (RIGHT)
First row of blocks mortared into footing. (April 11, 2005)
View of blocks mortared into footing with drainage area next to footing.