I'm alittle concerned after reading the article about hydrogen sulfide and the health risks with it. I recently had a bad leak in my 225 tank which made me remove the whole tank to be fixed. In doing so I had to remove my sand bed (about 2 inches deep) There had been a small odor in and around the tank for about a month but didn't think anything of it. But after removing the sand bed... the whole house has a rotten egg smell and I'm concerned for my familys safety. What should I do? The tank and the smell was close by my air conditioner and I'm wondering if its blowing throughout the house. Please tell me what to do!