RV Tank Valve Replacement

Stop Leaks, Prevent Waste Buildup, and Protect Your RV’s Plumbing System

A failing RV tank valve is not just an inconvenience—it can lead to waste buildup inside your

tanks, sewer exposure, odors, and unsanitary conditions. When a black or gray tank valve does

not fully open or close properly, it prevents proper dumping and allows problems inside the tank

to worsen over time.

Our RV Tank Valve Replacement Service removes worn or malfunctioning gate valves and

installs new, properly functioning replacements to restore safe, controlled operation of your RV’s

waste system.

• Signs You May Need RV Tank Valve Replacement
• Waste leaking from the sewer outlet when the valve is closed Valve handle is difficult to pull or push
• Valve will not fully open or fully seal
• Tank drains continuously when connected to sewer
• Persistent odors near the termination outlet
• Incomplete or inconsistent tank dumping

Why Properly Functioning Tank Valves Matter (Did You

Know?)

Tank valves that do not fully close allow liquids to slowly drain while solid waste remains

behind in the tank. Over time, this leftover waste can dry, harden, and accumulate, forming the

building blocks of a waste mound inside the black tank.

Additionally, a valve that does not seal properly can leave your RV’s waste system exposed to

the sewer environment. This exposure creates ideal conditions for sewer flies, which thrive in

moist waste areas. These insects can enter through RV plumbing vents, sink drains, and toilet

openings, allowing them to hatch and spread throughout the RV.

• Replacing a failing tank valve helps:
• Prevent hardened waste and waste mound formation
• Reduce dumping restrictions and clogs
• Protect your RV from sewer exposure Minimize odors and unsanitary conditions
• Improve overall waste system performance

What This Service Includes

• Evaluation of black and/or gray tank gate valves
• Removal of failed or malfunctioning tank valves
• Installation of new replacement gate valves
• Inspection of surrounding seals and fittings
• Verification of proper operation and leak-free closure

Why RV Tank Valves Fail

RV tank valves are exposed to waste, moisture, and mineral buildup over time. Factors that

commonly contribute to valve failure include:

• Mineral deposits from urinary waste
• Improper dumping habits
• Infrequent tank maintenance
• Normal wear and aging of valve components
• 
  

Prompt replacement helps prevent more severe plumbing issues and unsanitary conditions inside

your RV.

Recommended Timing

RV tank valve replacement is recommended when:

• A valve will not fully close or open
• Leaks or continuous draining are presen
• Odors persist despite proper dumping habits
• Tanks are being cleaned, and valve failure is identified

Valve replacement is often performed in conjunction with RV tank cleaning to ensure the best

long-term results.

Important Service Notes

• Valve replacement availability depends on RV configuration and access
• Severe corrosion or structural damage may require additional repair recommendations
• This service focuses on valve replacement, not full plumbing system reconstruction