I keep a 90 with a click hose connection on my waterline all the time. My city water is behind a small access door but the door has a 'port' for the water hose and the 90 sticks outside the door very nicely. This means I don't have to open the door to hook up the water.
I did create a 'cap' for this by putting a hose cap on a click connector that I snap on when the hose isn't connected- to keep bugs and stuff out.
I keep click connectors on each end of all my hoses and filters so hooking up water is easy.
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Buddy Ray - Atlanta
Jayco 2016 Eagle HT 26.5RLS
Ford 2016 F150 Lariat, 3.5L V6 Ecoboost
Max Tow Pkg, 36gal tank
Reese Sidewinder and Reese Titan 16k hitch