Jura Capresso C3000 keeps saying clean unit

I have run the clean process with the tablet 2 X , but the machine keeps beeping to be cleaned. I use brita filtered water & thought to decalcify the machine for the 1st time. Maybe that will help, but do you use the liquid that the manual says(durgol), or the decalc tablets Williams Sonoma says to use? Anyone else have their machine want to be cleaned over & over? Aftter 2 years, my Jura Capresso S8 has just developed the same problem. I use the Claris filters, so I doubt it is a problem with calcification. The time before this, it made me clean it twice and then the message went away, not it keeps saying "Clean Unit" no matter what I try.