Originally Posted by renogaw
do a search on durso stand pipes. (i think that's the name)
If I remember correctly it's not durso (they have the elbow at the top), they won't fit in an overflow box.
Do a search on the DIY forum for stand pipes and there are several references and pictures.
I did mine and with a couple minor modifications it's been great!
If you can buy PVC and drill/cut it you can do it!
good luck