Caroma Stylus Toilet

[Nanne]

Water is filling very slowly — could this be an inlet valve issue? If so, which part do I need to replace? Thank you

  

 

[JacobZ]

Hi @Nanne,

Yes, a very slow-filling cistern is commonly caused by an inlet valve issue. The inlet valve controls how quickly water enters the cistern and shuts off once the correct level is reached. When it becomes partially blocked by sediment or scale, or when it wears internally, water flow can be reduced to a trickle.

In most cases, it is easiest to simply replace the complete inlet valve assembly rather than small internal components. Replacing the valve usually restores normal fill speed and reliable shut-off.

Unfortunately, it looks like you have a back-to-wall toilet seat with a bottom entry inlet valve, which means the inlet valve is connected inside the base of the actual toilet, where you can't access it without shifting the toilet.

Can you see where the inlet hose attaches to your toilet?

Unfortunately, if it is as I suspect, to replace the inlet valve, it seems likely you'll have to contact a plumber for assistance.

Let me know what you find and if you have any further questions.

Jacob

[Nanne]

No option just to turn off the water and replace the inlet valve without a Plumber?

[MitchellMc]

As Jacob mentioned @Nanne, because you have a closed-coupled toilet system, there’s no ability for you to undo the inlet valve as the nut for it is located inside the unit, making it inaccessible unless you remove the entire top system area. Given this, it’s probably best to replace the washer in your current inlet valve. You’ll need to undo it, locate the washer, and replace it with a new one. This may resolve the issue if there is a problem with the inlet valve washer, as it could be decomposed and restricting water inflow.

If you don’t have any experience replacing washers in an inlet valve, it would likely be best to enlist the services of a professional. That said, you could attempt to replace the washer yourself, but it will involve taking the inlet valve apart. There is normally a clip or screw section that allows you to access the rubber washer inside the white inlet valve on the right-hand side. 

Because there are many different types and styles of inlet valves, it’s not possible to give specific step-by-step instructions on how to remove the washer. It will really come down to inspecting the valve you have and identifying how it comes apart. In most cases, you’ll need to look for a clip, cap, or threaded section that allows access to the internal components and the washer.

Please let me know if you have any questions.

Mitchell

[Nanne]

Thank you for the advise - Can you put a link for the part I need to purchase?

[MitchellMc]

Hi @Nanne,

There are a variety of different headseal washers for inlet valves. We'd need to see the one in yours to suggest appropriate products. Typically, once you remove it, it is best to take it to your closest Bunnings store and ask a plumbing team member to help you match it.

Mitchell