Hi Dennis,

I had the same problems as you mentioned. The plastic bag kept falling off or was not in the correct position when I wanted to place the retainer hoop in position and tighten it.

What I did was use about 4 of the small spring clamps to temporarily hold the plastic bag in position while I placed the bag retainer hoop around the plastic bag. Once the retainer hoop was in position I removed the spring clamps. Made a hard job really easy.

Hope this was of some help.

John