In 2010 while the GMC was on the hoist waiting for the engine to be rebuilt, I had the tanks dropped and all the fuel lines changed.

In 2014 while waiting to leave a rally I flipped the tank switch and a few moment later the coach stumbled, quit and would not restart. I had the laptop connected and noticed the EBL was reporting very little fuel pressure. Flipped the switch back to the original tank, fuel pressure was back and the coach restarted and drove home. Back home I dropped the tanks and found the fuel out line on the top of the tank had deteriorated, hard and cracked after only 4 years. The hose was SAE 30R7 with a date code of 2007.

When I had my hoses replaced in 2007, my hoses were in this sorry condition. I assume they were OEM

I replaced all the hose with 30R9 hose and installed steel lines above the tanks.

I would like to put the metal lines above the tanks. HOW DO YOU CONNECT/SEAL to the tanks?? If the tanks can be connected to metal lines permanently, the rubber hoses can much more easily be replaced when needed.

[b][color=red]/// CUT ///