Geez, the grey-water police sure showed up quick! The OP never said anything about running food scraps or grey water onto the ground.
I use this, hooked up to my low point drain (cold water only). I simply extended the low point drain to a convenient location and added a garden hose quick-connect. The outdoor sink sits next to my Blackstone Tailgater grille/griddle, and is so handy that some friends just purchased one too. The drain goes into a collapsible bucket.
We don't stop playing because we grow old...We grow old because we stop playing!
2004 Itasca Sunrise M-30W
Carson enclosed ATV Trailer
-'85 ATC250R, '12 Husky TE310, '20 CanAm X3 X rs Turbo RR
Zieman Jetski Trailer
-'96 GTi, '96 Waveblaster II