Originally Posted by Wet_Boots
I wouldn't mind some extra expense, if it gives me a solid mechanical connection, and allows the flex PVC to be a reliable pump suction line. Gluing flex pipe for a suction line is not best practice, sez me.
sorry W_B, i have used sched. 40 flex for suction on the majority of the pools that i have plumbed without incidence. i used the proper glue and primers for pvc, abs to pvc and pvc to flex. i have a more than a few of them in the ground without issue.
dissimilar materials can be welded without issue if the right materials and techniques are used