I realized I made a huge mistake.. Some bad communication between the family and I that when I went to check on my WSM 22" the crates are dirty and the water pan is filled from the last smoke. Its been several (4 months) since my last smoke I am fumed at myself for it. The smoker has been covered up though but I am wondering how can I properly clean the smoker grates and water pan after making this mistake? Would it be better to replace the parts? What is a way I can clean it without destroying the smoker? What should I use to scrub the sides?