Instead of using the big steel ties I might try using a pair of these
http://ecx.images-amazon.com/images/I/31gvAlhSsGL.jpg
[ame=http://www.amazon.com/Amico-155mm-311mm-Range-Stainless/dp/B008LTI4UU/ref=sr_1_77?ie=UTF8&qid=1372773714&sr=8-77]Amico 155mm to 311mm Range 12-1/4" Stainless Steel Band Worm Drive Hose Clamp - Amazon.com[/ame]