Best Answer: the rate of diffusion is directly proportional to the concentration gradient. The greater the difference in concentration between two areas, the greater the rate of diffusion.
EPC-40: Electrical Plastic Conduit : Designed for normal duty application. EPC-80: Electrical Plastic Conduit : Designed for heavy duty application.
After the electrical conduit was installed, I packed sand around it and created a smooth bed for the 4 PVC pipe. To maintain the ideal level, I supported the other end on some wood blocks while I packed damp sand underneath the pipe. The ends of the conduits where they enter the garage.