Yes, plastic pipe, PEX, can replace copper anywhere now.
A shower curtain is something that you hang in your bathtub or shower enclosure, to keep the water from getting all over the floor, when you shower. A plastic shower curtain is a shower curtain made from plastic. I think most of them are made from vinyl, actually.
Where can I bye a plastic shower curtain rod cover
If it is indoors and not a recessed shower, you may have a leaking shower pan.
Plastic shower curtains are made of a variety of different materials, but most commonly they are made of polyester, PVC, or polyethylene.
Metal shower heads look nicer but show hard water, plastic will not show hard water, if you have a water softener a metal shower head is the way to go.
This can be a complicated job as the toilet drain ranges from 3" -4" and a variety of materials from Plastic to cast iron to galvanized. Then there is the venting to consider and NO a shower drain CANNOT be used for a toilet discharge as the shower drain is normally 2" diameter
Just wear plastic gloves.
A shower curtain is hung up on a rod in between two walls to keep water in the shower and out of the floor when showering. The most effective shower curtains are a type of plastic.
NO
A shower wall can be covered using several materials, provided they form a waterproof surface. Ceramic or plastic tiles, sheets of plastic, transparent or frosted glass, and so on.
The Bobrick shower curtain cannot be installed in the ceiling. It is made be installed in the shower wall brackets.
A fernco or rubber fitting. This made of rubber and had hose clamps on it. You should ask for assistance at a hardware or plumbing shop for a 2" Plastic X 2" Copper Fernco or rubber coupling.