While Keystone RV considers specific plumbing routing schematics proprietary, their systems follow a standardized architectural layout designed for easy maintenance and winterization. Below are the key features and components typically found in a Keystone RV plumbing schematic. 1. Centralized "Convenience Center"
: Integrated bypass valves that allow you to draw RV antifreeze directly through the pump without filling the water heater. 2. Color-Coded PEX Distribution schematic keystone rv plumbing diagram