This is what I used. Worked great! Primer and glue in one. Clear. Easy clean up.
https://www.amazon.com/gp/aw/d/B00H...a+glue+pvc&dpPl=1&dpID=41+8+mfRyEL&ref=plSrch
https://www.amazon.com/gp/aw/d/B00H...a+glue+pvc&dpPl=1&dpID=41+8+mfRyEL&ref=plSrch