Have a lot of these in the water.

Picked up green schedule 40 from Home Depot online;
http://www.homedepot.com/p/Formufit-1-2-...563?quantity=20


Married them up, dropped them in, nice.


You can sink these to the bottom (tie down if nothing else), float them mid-depth, or at the surface (just insert the piping lateral and down and not up).