or he didnt change his bongwater often enough. People dont get it, warm standing water at room tempurature with decaying organic matter in it? to some peoepl that spells "leave it in for a couple days" but to me that spells bacteria and mold. ive heard of the pneumonia myth with ice in bongs, and there may be some truth to it. Either way i prefer hto water bongs, its soothing, thick, and its a well known fact that steam is good fo rthe resperatory system.