Thetford Water Valve 31705 (fits the Aqua Magic V & VI)

Thetford Water Valve 31705 (fits the Aqua Magic V & VI)

Thetford®
SKU:
31705
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$35.95
$48.69
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Description

Thetford Water Valve 31705 (fits the Aqua Magic V & VI)

Thetford AM5/ AM6 Water Valve

The Thetford 31705 Water Valve is a genuine replacement part designed for Aqua Magic V and VI RV toilets. This valve controls the flow of water during flushing, ensuring efficient operation and a reliable, thorough rinse with every flush.

If your toilet is experiencing weak flushing, inconsistent water flow, or leaks, installing the 31705 Water Valve restores proper function and optimal performance. Manufactured to Thetford’s high-quality standards, this valve is durable, easy to install, and precisely engineered to fit Aqua Magic V & VI toilets.

Maintain the efficiency, hygiene, and reliability of your RV toilet with the Thetford 31705 Water Valve — an essential component for smooth, effective flushing in Aqua Magic V & VI toilets.

Features & Benefits

  • OEM water valve engineered specifically for Aqua-Magic V & VI toilets
  • Provides consistent bowl-fill and rinse performance
  • Fixes leaks, weak flow, and inconsistent flushing
  • Durable polymer construction designed for RV use and varying water pressures
  • Direct factory replacement—no retrofitting or adjustments needed
  • Ideal for restoring both flush and refill reliability

Fits These Models

Compatible with:

  • Aqua-Magic V – High Profile & Low Profile
  • Aqua-Magic VI – High Profile & Low Profile

Matches factory plumbing connections and operating geometry.

Common Issues Solved

Replacing the 31705 water valve can fix:

  • Water leaking from the back or base of the toilet
  • Weak or inconsistent bowl fill
  • Toilet not adding water when pressing the pedal
  • Valve sticking or failing to shut off completely
  • Intermittent water flow caused by internal wear or debris

Replaces / Also Known As

  • Thetford 31705 Water Valve
  • RV Toilet Water Inlet Valve
  • Flush Water Control Valve
  • Valve Assembly for Aqua-Magic V/VI Toilets

What’s Included

  • OEM water valve assembly
  • Mounting hardware and O-rings (depending on model variant)

Installation Overview

  1. Turn off RV water supply.
  2. Remove the toilet’s shroud or back cover to access the valve.
  3. Disconnect the water line and remove the old valve.
  4. Install the new 31705 valve in the same position.
  5. Reconnect water line, reinstall shroud, and test for leaks.
  6. Confirm full flush and refill operation.

Typical installation time: 10–20 minutes.

Frequently Asked Questions

Q: My toilet won’t add water during the flush—will this part fix it?
Yes. A failed water valve is the most common cause of no water entering the bowl.

Q: Does this fit Aqua-Magic IV or Style Series toilets?
No. This valve fits Aqua-Magic V and VI only.

Q: Is this the genuine OEM Thetford valve?
Yes — 31705 is the official factory replacement.

Q: Do I need the water valve link (36528) too?
Only if the pedal moves but the valve does not actuate. Many repairs require the valve alone.

Q: Do I need to remove the toilet to install this?
Often no — the shroud provides sufficient access on most RV installations.