Schedule of pipe most commonly refers to the thickness of the wall of the pipe itself. ex...schedule 40 PVC pipe has a thinner wall than sch. 80 PVC
The difference between schedule 40 and 80 pvc is the wall thickness and schedule 80 is thicker then schedule 40 so the higher the schedule number the thicker the wall of the pipe thus can hold more pressure.
It is the wall thickness heavier then schedule 20 lighter then schedule 80
A junior saw is a saw that is used to cut PVC and metal. The blades for it come in different sizes depending on the material you are cutting.
I can't imagine the plumber only giving 1 year on the PVC. Cast iron is rough on the inside and those rought spots can snag paper, lint, etc, eventually leading to blockage. PVC should last much longer and be less susceptible to blockages from material getting caught on the inside wall of the pipes. Also, PVC doesn't rust, while cast iron will. All-in-all, I'd have to vote for the PVC (make sure that it is at least Schedule 40 PVC).
A sleeve is anything that protects the pipe from something else you can purchase special sleeving for copper or pex in slabs, sleeve an irrigation line in a driveway with PVC or use PVC between floors of a concrete building.
The wires themselves are usually made of a metal such as copper.
Wall thickness, pressure rating and Price
Answer replacing cast iron with PVCThere is a rubber sleeve available that goes in the cast iron and then the PVC slides into it. Use a rubber outside sleeve with two hose clamps. You can also replace the rusted section with PVC and them "lead" them with the packing and a paste sealant that is made for this.
It will connect to the PVC pipe into the wall which ultimately will connect into the main sewer line outside.
PVC conduit is better then metal as it won't corrod under ground and theres less of a chance of electrical shortages.
PVC pipes are less expensive and easier to repair. Metal pipes are more expensive and more difficult to repair.
There is not much difference, however, plumbing PVC has a thicker wall, for obvious reasons, namely, water pressure.
Schedule of pipe most commonly refers to the thickness of the wall of the pipe itself. ex...schedule 40 PVC pipe has a thinner wall than sch. 80 PVC
The difference between schedule 40 and 80 pvc is the wall thickness and schedule 80 is thicker then schedule 40 so the higher the schedule number the thicker the wall of the pipe thus can hold more pressure.
PVC pipe has less friction. They are also longer lasting than the others.
Sleeve over the pile with a slightly larger composite piling(Pearson pile) , top with PVC cap.