No, do not throw your used oil or filters in the trash or down a drain. According to the EPA, used oil from one oil change has the power to contaminate 1,000,000 gallons of water. Oil is toxic and is slow to degrade in the environment.
Comparison is made between Liteblokâ¢ 69 and CMU for an outdoor block wall. A wall built with the 5â Liteblokâ¢ 69 Tall will be about $5.90 per square foot. (ignoring footing costs) including materials and labor. A similar 6â CMU costs. about $9.79 per square foot2 (also ignoring footing costs which will be about the. same for both systems).
Concrete Block Sizes and CMU Dimensions. Concrete Masonry Units (CMU), or Concrete Blocks, come in a variety of sizes. CMUs are identified by their depth - i.e. the thickness of the wall they create. For instance, a 6 CMU is nominally 6 deep. As with brick, CMUs have actual dimensions and nominal dimensions. The nominal dimension of a CMU is the actual dimension plus the width of the mortar joint. Typical CMU mortar joints are 3/8.