This morning when hooking the rotex to the hose end the end of the hose came off. I tried everything to reattach but to no avail. I can see that the hose end should thread on to the hose but it wouldn't. Any suggestions. Used duct tape to finish the day. Also, I would like to buy another hose for extra length and to use the clean up attachments. But, does Festool make a coupling to connect the one inch side of the hose to the larger end or do you have to buy a separate hose and connect directly to the vac?