RV plumbing systems face constant movement, vibration, and temperature changes—making them prone to leaks and failures that residential plumbing rarely experiences. Whether you're dealing with a mysterious leak, a failed water pump, or need winterizing, understanding your system helps you communicate with technicians and avoid costly damage.
Common RV Plumbing Problems
Water Leaks
Leaks are the most common issue and can cause serious water damage. Common locations: fittings loosened by vibration, water heater connections, toilet seals, faucets, and tank connections.
Water Pump Issues
- Runs constantly — Indicates a leak in the system
- Cycles frequently — Pressure switch adjustment needed or small leak
- No water flow — Empty tank, clogged filter, or failed pump
- Noisy operation — Worn bearings or mounting issues
Toilet Problems
- Won't hold water — Ball valve seal needs replacement
- Odors from bowl — Damaged seal or dry trap
- Foot pedal stuck — Mineral buildup or broken spring
Water Heater Issues
- No hot water — Pilot light out, thermostat, or element failure
- Leaking — Tank corrosion, relief valve, or fitting failure
- Not enough hot water — Sediment buildup
RV Plumbing Repair Costs
Maintenance Tips
- Sanitize fresh water system annually with diluted bleach
- Check all connections for tightness and leaks regularly
- Flush water heater yearly to remove sediment
- Use RV-safe toilet paper to prevent clogs
- Winterize properly before freezing temperatures
Find RV Plumbing Repair Near You
Don't let a plumbing problem ruin your trip. Our directory connects you with mobile RV technicians who specialize in water systems and can diagnose and repair issues on-site. Search by ZIP code on our homepage to find help near you.