Kitchen taps

[JackDaniels]

Hi there, I have found a little leak on my kitchen taps, they are made by Franke and are mixer ones. I took the lever off the top and the casing and the brass nut so I could get the little cylinder operating thingy out. Below that was the holes where the water comes out but I couldn't get the bottom piece off the tap, it sits above the spout of the long tap. I also can't get into the white cylinder to see if I have a problem with the washers. Does anyone know where the leak maybe coming from and / or can it be fixed or will I need a complete new tap??
Tahnks
JD

 

[REDSAW]

put a fiber washer on the tap seat, replace valve and clamp down.
sorted for a few months at least.