One of the nice features of my RV Lost... The valve you suggest was installed at the factory... That said. the in-line check valve would be a better option for me because I only use tanked water. Long story as to wise but if the pump was leaking back it would keep cycling.
The story Part 1
Campground I winter at the city water has too much Chlorine. by filling the on-board and letting it sit a few minutes.. Much better tasting water
Part 2:
The campground I'm in has "issues' water wise (Lots of sand in the mic) The park I'll be in next week does not. SO I use only their well monitored for quality water all summer. Do not even hook up hoses here.