Keystone Rv Plumbing Diagram [BEST]

Go outside now. Open your pass-through storage. Look up. Do you see a thin black or brown panel? Unscrew it (4 screws). If you find a folded yellowed piece of paper taped to the floor, you have just found your holy grail—the original Keystone RV plumbing diagram.

For normal operation, Valves A & B are OPEN , Valve C is CLOSED . For winterizing, A & B CLOSED , C OPEN . One mistake here floods your RV or sends antifreeze into your water heater (a costly cleanout). keystone rv plumbing diagram

This is the clean water that comes out of your taps. Go outside now

You can often request a specific plumbing layout from Keystone’s customer support using your RV’s 17-digit VIN. They may send you a PDF of the "build sheet," which is the closest thing to a true diagram. Do you see a thin black or brown panel