Most of the trios all have duckbills, but in the last couple of months I have found one on a side by side? Yours should have a p trap plastic drain on it ?Putting water in the evap drain will show you that it is clean,because the water should run thru it into the condenser pan. There is some bending involved,just go slow and take your time. Easy fix. Then let the unit run. Then as tgoods stated before, in time you will see if there are other issues.