Why doesn't my new Geberit flush valve fit properly?

The new 244.820.00.1 model requires removal of both the old flush valve and the old valve holder. If that holder stays in the tank, the new valve will sit too high and won't seal against the drain opening properly. Once you remove the holder completely, the bottom of the valve drops into place on its own and everything works as it should.

How do I know if the old holder is still in the tank?

Take a close look inside the tank at the mounting points of the old flush valve. If there's still a basket or holder loose in the tank, you'll need to take it out before installing the new flush valve. The photos in this guide show exactly what that looks like, so you can spot it quickly.

Is there a manual for installing this flush valve?

Yes, you can download and follow the official installation PDF 970.281.00.0_02.pdf. Pay close attention to step 6 in particular: it explains that you need to remove the old holder. Skipping this step is the most common reason a flush valve ends up sitting too high.

Can I replace this flush valve myself without a plumber?

Absolutely, this is a job you can easily handle yourself. Follow the service video and the steps in this guide, and keep the PDF manual handy for the details. With the right preparation and by properly removing the old holder, you'll install the new flush valve without any issues.

Geberit 244.820.00.1 Flush Valve Replacement

Did you order and receive the Geberit 244.820.00.1 flush valve, but does it fit poorly during installation because it sits "too high"? Then you're dealing with the new model flush valve, which is mounted slightly differently than the old version. In this guide, we'll show you exactly what to do: which old parts you need to remove, how to fit the new holder, and what to watch for so the flush valve drops properly into the drain opening. With the service video, the accompanying PDF and clear photos, you'll install the flush valve yourself quickly and correctly, no plumber needed.

Geberit 244.820.00.1 flush valve replacement: sitting too high — no plumber needed

What you need to know before you start

You've ordered and received this flush valve, and it doesn't fit properly during installation because it sits "too high." Here's what we recommend: this is a new model flush valve, and it works slightly differently than the old version you're replacing. The difference lies in the holder: when installing this flush valve, both the old flush valve and the old valve holder need to be removed. If you skip this, the holder will remain in the tank and the new valve will sit too high — exactly the problem you're running into now.

Geberit Flush Valve 244.820.00.1

Watch the handy service video here to replace the flush valve.

Service video: replacing the flush valve

What do you need?

Geberit flush valve 244.820.00.1 (new model)
Corresponding installation manual (PDF)
Screwdriver or other tool to remove the old holder
Towel or bucket to catch any remaining water

Step by step

Shut off the water supply and empty the tank before you start.
Remove the old flush valve and the old valve holder completely from the tank. If the holder is still in place, the new valve will sit too high and won't work properly.
Check that the tank is completely free of any old holder parts before continuing.
Fit the new flush valve and make sure the bottom of the valve drops into the drain opening — only then will it work correctly.
Carefully mount the corresponding bracket according to step 6 of the PDF manual below; this is the most commonly missed step.
Reconnect the water supply and test that the flush valve works.

Above you can see it's sitting too high because the holder is still in the tank.

You'll then see that the bottom of the flush valve drops into the drain opening and works correctly.

970.281.00.0_02.pdf

NOTE! Carefully check step 6 in the PDF file, the old holder must be removed.970.281.00.0_02.pdf

Above: the new model with the bracket already mounted.

This basket needs to come out of the tank.

Left: new model. Right: old model flush valve (green with white) with removable holder.

Frequently asked questions

Frequently asked questions about the Geberit 244.820.00.1 flush valve

Why does my new Geberit flush valve sit too high?

This usually happens because the old valve holder is still in the tank. The new 244.820.00.1 model uses a different mounting method, where you need to remove both the old valve and the old holder completely. If you leave the old holder in place, the new valve sits too high and the bottom won't drop properly into the drain opening, so it won't seal correctly.

Do I really need to remove the old holder?

Yes, that's essential. When installing this new model flush valve, you need to remove both the old flush valve and the old valve holder from the tank. This is also explicitly stated in step 6 of the included PDF manual, which you should check carefully before fitting the new valve.

How do I know if the flush valve is installed correctly?

You'll recognize a proper installation because the bottom of the flush valve drops neatly into the drain opening. At that point, the valve works properly and seals correctly. If you're unsure, compare your situation with the photos in this guide, which clearly show the new model with the bracket mounted.

Where can I find extra help with the installation?

Check out the service video at the top of this guide for a visual explanation of the installation, and refer to the included PDF manual for the exact steps, including step 6 on removing the old holder. If you get stuck, feel free to contact our customer service team for personal advice.