If your group does not have any water coming out of brewing head or if brewing head is always leaking or if back flush tubes leak when brewing, your 3 Way Valve could be dirty or not working.
L90.K.181.V (Only for first models made)(Group gasket viton o-ring, bell o-ring, doccia screen)This is for first generation Livia 90 models. These machines were manufactured up...
Item Description: single shower screen - Screw sold separately. When this part is new it easily flows through your machine and will gives you better crema....