http://www.fiberglassrv.com/forums/f...ita-85227.html click on pic to see enlargement.
I used a 5x5" x 58" long piece of vinyl fence post. The
light
weight caps are held on by those bungees which come
in loops w the little red ball on one end..
Drill a hole(smooth the edges) in the middle of the end caps and push the bungee LOOP thru from the OUTSIDE, leaving the red balls on the OUTSIDE.
Then drill a hole near each end of post and stretch the bungees loops into the post and OUT thru that hole. Try stretching the bungees a couple times first, to see where to drill each hole in yer tube.
Fix that loop as it exits the tube w some kind of pin or something. I used a piece of aluminum pin bent to stay in the bit of loop stuck OUT a hole..experiment w your bungees to see where to drill holes. The stretched bungee holds the caps ON and allows one to pull them off to extricate the slinky. Smooth out the holes to avoid fraying.
The caps stay on and there4 do not
fall into the mess at the dump stations. Our rig has enuf room to store that plastic 'tank wash wand' too.
I do "test" the tightness on each "walkaround" by shaking the 5" tube..still tight after two trips to campgrounds in a month.
If the caps break you can easily replace them and the little bungees as there is only one pin holding the loop to the tube.