Pvc support?

[Notsolostfish]

Im working on a closed loop for my UV sterilizer where i have to badically go from the sump level from the sump up to the back of the tank. I just dont have anywhere to screw clamps in to hold the pvc? What should i do? Thats a video sent to a friend explaining the situation but yeah. Any suggestions?

 

[slickreefing]

Nothing attached here