How do I install horizontal propane tanks in my Lance 1161?

Chet, we have a 2005 Lance 1121 with 2 horizontally mounted 30's. The propane guys will only fill on the ground in the vertical position. It is printed on the tanks" must be filled in the upright position."

We too are having a hard time getting them back in, So far I've offered to pay the guys to reinstall and they have assisted lifting them in. I'm still barely able to get them down when empty.

Time marches on, remember how slowly 16 came on while awaiting your drivers permit and how quickly time flies now?