My Cougar 243RKS has a rear galley tank and front black and gray tanks. The valves for all three are recessed above the coroplast at the location of the tanks. There is a connecting pipe from the outlet of the galley tank valve to the main outlet at the forward tanks. That connecting pipe is outside of the coroplast. Just like Johns (JRTJH).
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2007 Keystone Cougar 243RKS
2019 Ford F150 S/Crew ECOBoost
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