What are the effects on the lungs from inhaling vaporized hash oil through a water pipe daily over a period of 3 or more years. Grade 2 ti is the vapi?

No studies. But is can't be good. You are at risk for cancer and chronic lung disease.
Hash and the lungs. Contrary to maybe popular belief the physician's job is to treat addiction not be an expert in all the modalities of drug use. To answer your question would require millions of dollars with the studies. If you are worried you need to see your physician to get pulmonary function test ; chest x-ray. Good luck.