Caroma Water Wafer Outlet Valve Seal | Genuine Part 405182

How to Identify the Caroma Water Wafer System: These were the first remote-access cisterns in Australia. Because the tank is often hidden in a roof space or wall cavity far from the toilet, use the Flush Plate to identify it:

• The Buttons: A classic Satin Chrome plate with two small, round buttons.

• The Tubes: If you pop the plate off, you will see large, aqua-blue pneumatic tubes connecting the buttons to the cistern.

• The Location: Often installed in the ceiling or a distant cavity (Remote Access).

Service Advice: Given the age of Water Wafer systems, we recommend replacing this seal every time the cistern is opened for service to prevent future leaks.

Genuine Caroma Spare — Part No. 405182 The Water Wafer was a revolutionary design, but like all pneumatic systems, the seals eventually perish due to water pressure and age. If your Water Wafer toilet is showing a constant trickle of water into the pan, this silicone outlet seal is the primary culprit.

Why this seal is essential for your service:

• Proven Durability: Specifically molded to fit the Water Wafer outlet tower, ensuring a watertight seal even in systems that have been in operation for decades.

• Stop the “Ghost Flush”: Replacing this seal stops the slow leak that causes your cistern to refill randomly throughout the day and night.

• Critical Maintenance: Because these cisterns are often difficult to access (in roofs or wall voids), replacing this seal while you have the cistern open is the best way to avoid a second, difficult access trip.

Legacy Parts Specialist

Water Wafer parts are becoming increasingly difficult to find. We maintain stock in our Mascot warehouse to support these older Australian systems:

• Fast Dispatch: 8 out of 10 orders delivered on or before time.

• Expert Knowledge: We know the difference between a standard Invisi and the original Water Wafer.

• Sydney Local? Order online and organize an Uber pickup from our Mascot location for an immediate repair today.

• Q: Will this fit the modern Caroma Invisi Series I or II?

  • A: No. This is specifically for the older Water Wafer remote system. Modern Invisi systems use a different outlet valve profile.

• Q: My buttons are square; is this still the right part?

  • A: Likely not. The Water Wafer is most commonly identified by the two small round buttons on a satin chrome plate and the large aqua-blue tubes behind the plate.

• Q: Do I need to replace the whole valve?

  • A: Usually, no. The mechanical tower in a Water Wafer is very robust. Replacing just the 405182 seal is typically enough to stop leaks and restore function.