Water and coolant mixing together

[michael lang]

Have you done a search/posted on Pelican Parts or Rennlist? A much broader 996 crowd on those two which increases your chances of someone having the same or similar issue.
I don't know that shop but what can it hurt to have someone else take a look. One of two things will happen. 1.you will find out if what your are already being told is correct 2.you will find out that the 2nd shop will recommend that the car return to the original shop for them to fix their comeback.