CCA means chrome, copper & arsenic. This treatment lends protection against most natural causes for wood decay such as termites. There are various treatment classes for various applications. The treatment is water based and impregnated into the wood under pressure.
Q:
What is the difference between underground and above ground 110mm PVC pipe?
A:
Firstly, the colour of the underground pipe is beige and the above ground pipe is white. The above ground pipe is UV stabilized and thus more expensive.
