Using CG water, I fill my FW tank and then use my FW tank for everything. The restriction of my pressure regulator and carbon block filter is greater than the restriction of a 1/2" hose.
Currently, I have some 5/8" and some 1/2". The 1/2" hose is a bit easier to handle and store. At some point in the future, it will all be 1/2".
Sherm & Terry w/rescues Steve (std Poodle) & Eydie (min Schnauzer)
2015 Jay Flight 27RLS (Camped: 102 nights 2015, 90 nights 2016)
2006 Ford F350 6.0 PSD, Lariat, 4WD, CC, LB, SRW, auto., Camper pkg.