I've been searching for a photo I spotted on FGRV of a series of 3 or 4 homemade pvc pipe frames somebody used to ramp their sewer hose down to the drain.
I know the posts you were talking about, but it wasn't here. It's on the CasitaForum. Here you go: Sewer hose support
. The only reason I know it, is I had spotted the info a long time ago and bookmarked the URL for future use... aren't you lucky
Jack posted some pics of the support in use on page two.
Now, after you get yours made, please take pics and post the info here
For everyone else, you'll need to be a member of CasitaForum to view the topic.