I have been enjoying my Isomac Tia espresso machine for over 20 years. Lately it has been giving me trouble and there are only two people in the San Diego area that will work on espresso machines. The frustrating part is that my machine will work for a week or so and then do the same thing it is always done. One of the repairmen said I need to “buy a new machine”. This infuriates me as I know it is probably a simple part that can be replaced or cleaned. I joined this form so that I could maybe get some information about how I can replace the part that is giving me trouble and have a machine that works again. Thanks.