Diy overflow

[DannyBWell]

I'm finally finished designing my wet dry trickle tower sump and have moved on to designing the overflow I have found the 90 degrees elbows that I need now all I need is clear piping what is the proper material PVC can't be used because its flexible what should I be using?

 

[DannyBWell]

I awnsered m own question just found some acrylic piping that'll do just fine