PVC is used for cheap drainage systems and venting and some lawn furniture and many chemical wastes CPVC is used for cheap hot water piping systems
CPVC is Chlorinated Polyvinyl Chloride . This is a type of PVC piping that is chlorinated in order to allow it to withstand exposure to high temperatures.
You may be better of contacting Hayward about this as there is not enough information in this question to give an answer. Ues CPVC cement on the CPVC fittings and regular PVC cement ( either blue, or clear) on all the other PVC
There is no special PVC pipe. CPVC can be used for hot water applications or in my opinion just use PEX pipe.
Chlorinated Polyvinyl Chloride (CPVC) pipes can withstand heat up to 180 degrees. A special glue is used to blond it together. PPR pipes are a made of plastic and uses no glue as it is heat-fused. PPR is a commercial product.
CPVC is better suited for hot water
Return the PVC to the store and purchase the CPVC you need.
No!!!! Use either a compression fitting, or what they call a Sharkbite, these things are incredible and will attach PVC, PEX, or copper using the same fitting.
Always use cpvc for hot water and PVC for cold water.
Basement, if any, will oft times have PVC piping used for drain lines in it, if codes allow PVC piping.
You can purchase PVC and CPVC piping at any local hardware or building supply store. Plumbing supply stores are less common, but you may have one near you. Be certain that you purchase the correct primer and glue for the type of pipe you intend to use, and use the correct pipe for the correct purpose.
I don't understand why you'd want to do that . CPVC glue is expensive, PVC glue is cheap and glues PVC pipe better.