No, you don't. You can barely turn the hose on when filling the tank. If you turn it up just a little, it can't keep up and comes flowing out of the fill tube. I guess it wouldn't hurt to put a regulator at the hose bib.
2014 RAM 2500 CTD 6.7 CCLB Auto
2015 Forest River Rockwood Signature Series Ultra Lite 8289WS w/ Diamond Pkg.
