I've just got my hands on a second hand Gaggia Classic which needs a little minor TLC.
The chap I got it from said it hasn't been descaled very many times - so that's the first job on the list.
Reading the So you've just bought a Gaggia Classic post - it says to use a citric acid...
From the different posts on here I am trying to determine which cleaning method/product I should be using for my machine. It is a Gaggia Coffee without a solenoid so I am unsure whether this should be backflushed or not.
Should I be just using a descaler or the whole works?