Geberit Cistern Slow Fill Issue: Tips to Fix Concealed Cistern with Limited Access

I warmly welcome,

Can anyone give me a hint how I can fix the cistern that fills up very slowly after draining. Due to the fact that it is a concealed cistern, there is extremely limited manual and visual access. Thank you in advance for your help.

forehead,

Are we sure we are talking about concealed siphon?
By chance, not a concealed frame?
Eg.


The filling valve is to blame, because the system is clogged with water, or the installation before the cistern is stuffed. Rest of taps, battery working properly? In the sense of water is flowing in a strong stream?

Yes, concealed frame only the siphon is a problem. Is there a schematic of how to fix it?

wolp3 wrote:

... there is a problem only with the siphon.

There is no siphon in the cistern, it is in the toilet bowl but it has nothing to do with filling the tank.

How about water pressure in other devices?

Elsewhere, it's just a toilet

So clearly the filling valve, you need to remove the button, get inside the cistern tank, close the water supply to the cistern, disassemble the filling valve, disassemble, clean, put everything together
Simple

It would be good to know what specific model you have?
Which year
A photo could help.

Ok thanks as soon as I take it I will try to take pictures and post them here

You were looking for info on this topic for example YT?

There is a lot of it, as well as types of cisterns
Eg.
https://youtu.be/ja0KJByTgCU

I looked but I did not find exactly how to replace this valve

Cool animation

https://youtu.be/LovH2z_skDM

that's how I saw it, I think I can do it

Hello, I have a brand new geberit, I have probably checked everything that is there, nothing is dirty, clogged, I opened the filling valve, etc. and cleanly there, and the water is poured too slowly in my opinion ... in addition, after rinsing the water, the rest of the bowl flows for a while water as if this valve from the cistern did not close perfectly. you do with it?

Do you have the installation in alupex technology, plastic? New installation? You don't have a twisted hose?

ppwielki wrote:

Do you have the installation in alupex technology, plastic? New installation? You don't have a twisted hose?

I have the installations on Pex, the installation is new. By the hose do you mean the valve or is it not twisted?

There is a filter at the entrance. Unscrew the hose and see if it is clean and how water flows from the hose itself.

[url=]Link[/url] Zbych034 you see, it is not known what slow filling means. A friend wrote that he checked everything and did not know that the hose could be twisted or bent. As for alupex fittings, it does not matter that the pipe is 16mm long, since the clearance of the fitting is 6mm. Why did I ask about the installation? Because many contractors do the installation with one, the cheapest pipe size, and when there are several elbows or tees, there are such resistances that the water does not flow, it just drips.

ps. after starting the new installation, various garbage clogs all filters, so check again what you checked and, as Zbych034 wrote, test the water only with a hose.

I don't know what it could be, but I had a problem with similar equipment because the lock was not removed for transport - the foreman who assembled it did not have a complete manual (probably it was not in the Polish distribution). The Polish representative sent one pdf page with a description of how to remove it - after removing a piece of styrofoam from the chamber with a button, it improved. The symptoms were similar, but I don't know if it's the same cause.

Geberit seem to have used the same method of filling and shutting off the water in all their float valves. The movable arm (the one clipped to the 'screw') has a red soft rubber band on the inside - you can see it when you remove this arm from the rest of the plug or this stationary part. In this part is a small hole the thickness of a pin and it is this hole that is closed and opened by this rubber band. When it closes this hole in the chamber where the water enters, a vacuum is created and the water does not continue to flow. If this opening is blocked with limescale, deposits or plastic residue from new use, the water will either not flow or will trickle out. I've taken my car apart four times and only with a torch and magnifying glass could I see the hole, or rather the fact that it was clogged with scale. After cleaning it, it runs like new. And the fact that the water still flies a little afterwards is more the fault of not having cleaned the main mechanism, rubber bands etc. and lubricated with a waterproof agent (how often this is done is anyone's guess). The hole in the cistern itself (at the very bottom, where the rubber band of the main mechanism rests) may be responsible for the water generally dripping into the toilet. To clean it is an acrobatics - first spray often with vinegar, then remove the limescale residue with some kind of brush on a long (flexible) handle. Or nail down the tiles, remove the whole Geberit i......