Main parts of model GD2 that needs to disassemble are: A. Pneumatic actuation plate B. Water filling float valve This sub-assembly consists of 2 main parts and additional parts that needs cleaning. C. Stabilizing bracket (frame) D. Pneumatic discharge valve (drop-valve) This sub-assembly consists of 3 main parts and additional parts that needs cleaning. Its lower part (the rod) holds the silicone seal that opens the water flow of the flush. Grohe GD2 main parts - general view * Image shows assembled parts outside the container Note: Clicking on each image will open a bigger image. 1. Take off the actuation plate. Push the lower part of the plate a bit up (1) and than rotate its upper part towards front (2) to release it and taking it off. Tip: Take it off just a few centimeters as 2 air hoses are connected to it. 2. Turn off water supply. Use flat screwdriver and turn it CW Water supply turn OFF 3. Push the big knob to discharge all water in the cistern.

4. Disconnect the 2x air hoses that connects to the actuation plate. Just pull it straight. Place the actuation plate aside and keep its front plate from getting damaged / scratched. Tip: Mark the actuation plate so you'll know which hose connects to each button connector. 4.1. Further disassembly of the actuation plate and pneumatic buttons.Kohler Bathroom Faucet Aerator This is necessary only if buttons does not function well and if you have the required spare parts (read next)Carpet Cleaning Wading River Ny * Please note that though this plate consists of several detachable parts that can easily be replaced, Grohe does not sell any of it. Mini Cooper Tyre NoiseYou'll be offered to replace the full subassembly panel which costs a lot.

Grohe unfortunately does not care about the environment and sustainability matters when it comes to its own parts. Just in case you got those parts, here are some disassembly images that might help. a. Press 4x snaps aside to detach the buttons from the plate b. This is the detached parts. Each button is held by 3 Black snaps. c. Small button parts d. Large button parts 5. Remove front frame. Unscrew 4x screws and pull frame straight. Use Phillips head screwdriver. 6. Disconnect water supply hose. Turn ring CCW by hand. Move the hose end to the side of the cistern. Water supply hose disconnect 7. Disconnect water float valve from the stabilising frame. First push the latch up (1) and while holding the latch, slide the float valve towards the center (2). Water float valve disconnect 8. Remove the float valve from the cistern. Do it while turning it along with pulling it out. a. Pull and rotate b. Continue to pull and rotate

c. Continue to pull and rotate until removed d. This is the float valve outside the cistern 8.1. Further disassembly and cleaning of the float valve a. Squeeze snap (1), pull tab (2) and remove the float (3) b. Unscrew spring cap d. Remove inner (red) part with membrane (pull out) e. Unscrew second cap f. Remove cap and clean inner and o-ring sides 9. Remove stabilising frame. First squeeze both latches (1) and than pull the frame upwards (2). a. Release and pull frame 10. Remove the pneumatic discharge valve from the cistern. Separate it to 3 parts while inside the cistern. a. Turn blue cap CCW (1) and remove it (2)Let inner seal rod drop down into the container. b. Remove the pneumatic sub-assembly c. Remove the seal rod d. This is the pneumatic discharge valve Image shows it assembled, outside the cistern 10.1. Further disassembly and cleaning of the pneumatic discharge valve a. Parts of the pneumatic valve:

Cap (1), Pneumatic sub-assembly (2) and Seal rod (3) b. Release 3x snaps holding the pneumatic cap. c. This image shows the cap removed d. Remove inner cylinder, pay attention to its slides e. Rotating handle of the inner cylinder Make sure handle moves freely f. This pin moves by small button air push Blow air through the hose to test it moves freely g. This small cylinder moves by large button air push pay attention that this latch goes under the snapLocated at the end of the rod. If Silicone seal needs to be replaced, this is where you'll find it To replace the seal, press the 3x snaps, release and pull the outer ring out. 12.Tip: Clean the cistern container. If you have got that far, it is advised to clean the bottom of the cistern container. Insert your hand in the container and pick any stones, sand etc. found in its bottom. You can turn on water supply and use running water to move and flush any debris found in the container bottom.

Since water goes from the container to the toilet, it is best to take out any large particles by hand to avoid jamming of the toilet water diffuser holes. Voilà, you have completed the repair / fix / maintenance of your Grohe cistern. Concealed cisterns are most commonly installed along with vanity furniture that is built in. All of the cistern is hidden with the help of the WC unit. These WC units will have to have a front panel that is removable so that they will be able to get to the cistern easily so it can be maintained. If you are having to fit a new WC unit, then the process itself can be quite overwhelming if you are not aware of the necessary steps. It is important that your new WC is connected to the main soil pipe. This is necessary for it to work. You will need to have it located as close to the soil pipe as possible. It is ideal for it to be directly over it. Before you begin, you should make sure that you turn off the cold water. From there, you will need to completely drain the cistern and remove it from your wall.

It is usually a good idea to have an assistant nearby, especially when you are removing the cistern itself. If it is in a higher area, then an assistant is very highly recommended. You will need a plumber’s wrench for the large nuts that need to be loosened. If these nuts happen to be corroded then it is a good idea to get a hacksaw to cut them out. You will need to take out the fixing screws or take the cylinder itself off of the support brackets. If you happen to be using the old cistern with a new pan, clean the old cistern thoroughly. If the old cistern is being replaced, consider reusing the flush mechanism as well as the float valve. You will need to get a wrench to remove them. The pan will have to be completely empty of water before it can be removed. If your pan is screwed into a wood floor, you will need to loosen the pan by removing the screws. A chisel may be necessary. With a concrete floor you will need the chisel to remove the pan. Once you have loosened the pan, rocked it and pulled it, hit the outlet with a club hammer.