Geberit SIGMA 8 cm & Typ 383 installation ~ help greatly appreciated

[newplumber2025]

Thanks to anyone willing to take the time to read this. I'm attempting a DYI replacement, so please know I truly appreciate any guidance you may provide. 

 

Our Geberit concealed system broke down after about 12 years? and I recently received the new parts to replace it. The SIGMA mechanism seems straightforward enough to replace, but I'm having issues with connecting the Floater typ 383...

 

The older floater has a different water hose connection, and I'm not sure which one I need for the 383?

(I've attached photos for reference.)

 

As I understand it, I need to purchase the correct water hose in order to complete the installation. But which one? 

Wish you all the best.

 

[MikeSharp01]

Not sure but does the plastic nut not unscrew on the new one to offer a flat face connection that undoing the nut on the old one will reveal thus allowing a direct connection. Old nut onto thread revealed by unscrewing the new nut. There is probably a rubber washer in there somewhere as well so use the new one.

[-rick-]

They look the same to me. Looks like the braided pipe is a standard fitting and the should unscrew from the rest of the assembly.

 

The brass pipe on the new one has notches on it and I think whoever fitted the original cut the pipe down to a shorter length at the notches.

[-rick-]

1 hour ago, MikeSharp01 said:

Not sure but does the plastic nut not unscrew on the new one to offer a flat face connection that undoing the nut on the old one will reveal thus allowing a direct connection. Old nut onto thread revealed by unscrewing the new nut. There is probably a rubber washer in there somewhere as well so use the new one.

 

I misread this the first time. I think you are right. Probably can choose which part to unscrew.

[newplumber2025]

15 hours ago, MikeSharp01 said:

Not sure but does the plastic nut not unscrew on the new one to offer a flat face connection that undoing the nut on the old one will reveal thus allowing a direct connection. Old nut onto thread revealed by unscrewing the new nut. There is probably a rubber washer in there somewhere as well so use the new one.

 

Thank you for your help!

 

I'm attaching additional photos of the flat face connection and the nut. I don't believe the new one can fit with the old one, so I figured I needed a new water hose to connect to the new one. 

 

Thanks again!