Any clear PVC
glue will work just fine. The clear is a medium glue and will take a few minutes to set up. Letting it dry for 24 hours, as suggested by justDIY, might be a good idea. I've never done that and have had no problems, but it's still a good idea. The blue (sometimes call Rain-R-Shine) is a fast setting glue. You can use it but it makes an ugly joint and it really stinks. The orange glue, while it will work for PVC
, is designed for CPVC. CPVC is the tan colored pipe that is certified for hot water. You can use CPVC if you wish, but it's smaller than PVC
...same dimensions as copper pipe. One thing about CPVC...the 1/2 will make a tight fit on the output of a Maxi Jet powerhead.
Either clear or purple primer will work fine...the purple stains the pipe, your fingers, the family dog, and anything else it gets on. I would use primer as it makes for a much better seal. JMHO