Re: the 12 inch tube that is too short? A tall polyethylene pail makes a great tube cap. It should fit the 12 inch PVC tube, bungee it up, add wood block stops if you need to.
Dacarls:
A-class USA 196, USA 21, H18, H16
"Nothing that's any good works by itself. You got to make the damn thing work"- Thomas Edison
| 
