Meijer Starbucks barista here! our mastrena is about 3 years and our mastrena is pulling shots extremely slow. has grinds in the shot and is very weak; (very watery when pulled) we put in a work order for it. But is there anything we can do in the meantime? should we not be selling drinks that have shots in it at all? Even though really that is not possible. Lol.

Thanks. I can take a video of 2 shots pulling if anyone wants to see how it is.